brood_year,first_release_date,last_release_date,cwt_1st_mark,cwt_1st_mark_count,cwt_2nd_mark,cwt_2nd_mark_count,non_cwt_1st_mark,non_cwt_1st_mark_count,non_cwt_2nd_mark,non_cwt_2nd_mark_count
"1952","19530427","19530427",,,,,"0000","19000",,
"1952","19530507","19530507",,,,,"0000","117675",,
"1952","19530507","19530507",,,,,"0000","26910",,
"1952","19530508","19530508",,,,,"0000","27600",,
"1952","19530507","19530507",,,,,"0000","96565",,
"1952","19530508","19530508",,,,,"0000","86250",,
"1980","19810513","19810513",,,,,"0000","50356",,
"1988","19890528","19890528",,,,,"0000","89500",,
"1988","19890609","19890609",,,,,"0000","1495100",,
"1988","19890609","19890609",,,,,"0000","1196000",,
"1989","19900611","19900611",,,,,"0000","2549000",,
"1991","19920305","19920305",,,,,"0000","329000",,
"2001","20020506","20020506",,,,,"0000","1923000",,
"2008","20090525","20090610",,,,,"5000","735816","0000","8184"
"1997","19980514","19980514",,,,,"0000","1790000",,
"1995","19960605","19960605",,,,,"0000","830000",,
"1994","19950601","19950614",,,,,"0000","3648000",,
"1995","19960605","19960605",,,,,"0000","2325000",,
"1996","19970515","19970520",,,,,"0000","895000",,
"2017","20180524","20180531",,,,,"5000","2019595","0000","14442"
"2019","20200528","20200602",,,,,"5000","1837226","0000","7564"
"2022","20230519","20230525",,,,,"5000","2561592","0000","11838"
"2022","20230529","20230603",,,,,"5000","1531210","0000","6458"
"2021","20220523","20220527",,,,,"5000","2457842","0000","7148"
"2003","20040516","20040516","5000","198318",,,"5000","1781",,
"2004","20050510","20050510","5000","198220",,,"5000","1780",,
"1983","19840601","19840601","5000","74789",,,"0000","821449","5000","1064"
"1983","19840601","19840601","5000","74975",,,"0000","824659","5000","1064"
"1984","19850619","19850626","5000","51538",,,"0000","1041492","5000","154"
"2006","20070612","20070612","5000","209561","0000","323",,,,
"2012","20130510","20130513","5000","104530","0000","635","5000","635",,
"2019","20200528","20200602","5000","110000","0000","387","5000","386","0000","1"
"2019","20200528","20200602","5000","89932","0000","316","5000","316","0000","1"
"2022","20230529","20230603","5000","104715","0000","441","5000","621","0000","3"
"2022","20230529","20230603","5000","108371","0000","457","5000","643","0000","3"
"2021","20220523","20220527","5000","102006","0000","1030","5000","61","0000","1"
"2014","20150424","20150426","5000","74822","0000","75","5000","203",,
"2013","20140506","20140507","5000","75848","0000","76","5000","76",,
"2013","20140506","20140507","0000","76024",,,"0000","76",,
"2015","20160502","20160503","0000","76663",,,"0000","339",,
"2015","20160502","20160503","5000","76056","0000","636","5000","305","0000","3"
"1980","19810505","19810505",,,,,"0000","93827",,
"1980","19810527","19810527",,,,,"0000","659236",,
"1980","19810527","19810527",,,,,"0000","423116",,
"1979","19800428","19800428",,,,,"0000","306700",,
"2017","20180524","20180531","5000","103841","0000","742","5000","795","0000","6"
"1979","19800401","19800401",,,,,"0000","64480",,
"1988","19890524","19890524",,,,,"0000","209000",,
"1984","19850617","19850617",,,,,"0000","1474000",,
"1984","19850619","19850626","5000","51677",,,"0000","1044631","5000","156"
"2012","20130510","20130513",,,,,"5000","829990","0000","5010"
"1989","19900219","19900219",,,,,"0000","290000",,
"1989","19900518","19900518",,,,,"0000","114500",,
"1990","19910610","19910610",,,,,"0000","342370",,
"1990","19910615","19910615",,,,,"0000","285670",,
"1990","19910615","19910615",,,,,"0000","253330",,
"1996","19970531","19970531",,,,,"0000","980000",,
"1994","19950601","19950609",,,,,"0000","1660000",,
"1987","19880316","19880316",,,,,"0000","292400",,
"1987","19880317","19880317",,,,,"0000","41700",,
"2007","20080603","20080603",,,,,"5000","1055832","0000","17168"
"2009","20100603","20100621",,,,,"5000","763137",,
"2008","20090527","20090610",,,,,"5000","2638652","0000","29348"
"2003","20040516","20040516",,,,,"0000","699901",,
"2015","20160502","20160503",,,,,"5000","577779","0000","4836"
"1980","19810527","19810527",,,,,"0000","1058525",,
"1989","19900513","19900513",,,,,"0000","323000",,
"1996","19970515","19970520",,,,,"0000","2030000",,
"2006","20070612","20070612",,,,,"5000","2981517","0000","4599"
"1990","19910620","19910620",,,,,"0000","1215000",,
"1987","19880316","19880316",,,,,"0000","102400",,
"1987","19880317","19880317",,,,,"0000","193200",,
"1987","19880317","19880317",,,,,"0000","218600",,
"1989","19900614","19900614",,,,,"0000","2766000",,
"1987","19880317","19880317",,,,,"0000","98600",,
"1988","19890309","19890309",,,,,"0000","553000",,
"1991","19920528","19920528",,,,,"0000","2490000",,
"1988","19890601","19890601",,,,,"0000","148700",,
"1988","19890601","19890601",,,,,"0000","121300",,
"1988","19890607","19890607",,,,,"0000","207300",,
"2016","20170519","20170527",,,,,"5000","948173","0000","3808"
"1993","19940602","19940602",,,,,"0000","3146000",,
"1993","19940614","19940614",,,,,"0000","2871000",,
"1979","19800321","19800321",,,,,"0000","50736",,
"2000","20010505","20010521",,,,,"0000","627600",,
"2010","20110605","20110615",,,,,"5000","777524","0000","3123"
"1952","19530122","19530122",,,,,"0000","389360",,
"1989","19900525","19900525",,,,,"0000","768000",,
"1989","19900526","19900526",,,,,"0000","658000",,
"1988","19890527","19890527",,,,,"0000","354000",,
"1986","19870530","19870530",,,,,"0000","285000",,
"1987","19880317","19880317",,,,,"0000","84400",,
"1987","19880613","19880613",,,,,"0000","3614000",,
"1990","19910610","19910610",,,,,"0000","146730",,
"1990","19910622","19910622",,,,,"0000","15480",,
"1990","19910625","19910625",,,,,"0000","770000",,
"2005","20060518","20060518",,,,,"0000","1999114",,
"1987","19880317","19880317",,,,,"0000","325400",,
"1980","19810817","19810817",,,,,"0000","109290",,
"1991","19920122","19920122",,,,,"0000","41000",,
"1991","19920523","19920523",,,,,"0000","18600",,
"2000","20010601","20010601",,,,,"0000","1502500",,
"1981","19820524","19820524",,,,,"0000","240927",,
"1981","19820524","19820524",,,,,"0000","879777",,
"1981","19820524","19820524",,,,,"0000","809364",,
"1991","19920523","19920523",,,,,"0000","1062200",,
"1982","19830526","19830526",,,,,"0000","281400",,
"2000","20010505","20010520",,,,,"0000","1149100",,
"1991","19920531","19920531",,,,,"0000","102000",,
"1988","19890528","19890528",,,,,"0000","175000",,
"1990","19910619","19910619",,,,,"0000","123881",,
"2005","20060530","20060530",,,,,"0000","1300000",,
"1987","19880317","19880317",,,,,"0000","125400",,
"2018","20190606","20190610",,,,,"5000","353320","0000","3461"
"1952","19530507","19530507",,,,,"0000","16650",,
"1952","19530507","19530507",,,,,"0000","57500",,
"1952","19530507","19530507",,,,,"0000","18879",,
"2000","20010601","20010601",,,,,"0000","1059500",,
"1993","19940614","19940614",,,,,"0000","659000",,
"2003","20040516","20040516",,,,,"0000","1000000",,
"1989","19900609","19900609",,,,,"0000","147000",,
"1990","19910622","19910622",,,,,"0000","35000",,
"2018","20190524","20190527",,,,,"5000","1367851",,
"2003","20040516","20040516",,,,,"0000","537000",,
"1990","19910620","19910620",,,,,"0000","1130000",,
"1990","19910619","19910619",,,,,"0000","139694",,
"1992","19930622","19930622",,,,,"0000","1960000",,
"1999","20000622","20000622",,,,,"0000","182700",,
"2007","20080603","20080603",,,,,"5000","2108243","0000","34280"
"1988","19890605","19890605",,,,,"0000","897100",,
"1999","20000522","20000522",,,,,"0000","935000",,
"2001","20020522","20020522",,,,,"0000","1960300",,
"1995","19960605","19960605",,,,,"0000","1025000",,
"1993","19940519","19940519",,,,,"0000","756000",,
"1984","19850619","19850626","5000","52108",,,"0000","1050890","5000","156"
"2009","20100603","20100621","5000","101863",,,,,,
"2002","20030604","20030606",,,,,"0000","1439000",,
"2004","20050512","20050512",,,,,"0000","1400000",,
"1996","19970531","19970531",,,,,"0000","1830000",,
"2010","20110605","20110615","5000","100654","0000","405","5000","294",,
"1997","19980514","19980514",,,,,"0000","2670000",,
"2006","20070601","20070601",,,,,"5000","1929025","0000","2975"
"1992","19930629","19930629",,,,,"0000","2465000",,
"2021","20220523","20220527","5000","115713","0000","1394",,,,
"1992","19930614","19930614",,,,,"0000","2000000",,
"1985","19860609","19860613","5000","202924",,,"0000","2990236","5000","1840"
"2002","20030604","20030606",,,,,"0000","1349000",,
"2016","20170519","20170527","5000","101079",,,,,,
"1997","19980501","19980508",,,,,"0000","900000",,
"1998","19990528","19990528",,,,,"0000","1375000",,
"2011","20120515","20120530",,,,,"5000","774245","0000","1552"
"1982","19830526","19830526",,,,,"0000","196700",,
"2006","20070601","20070601",,,,,"5000","499230","0000","770"
"1991","19920605","19920605",,,,,"0000","430000",,
"2013","20140505","20140507",,,,,"5000","59200","0000","550"
"2013","20140506","20140507",,,,,"5000","632279","0000","5871"
"1982","19830526","19830526",,,,,"0000","1867400",,
"1989","19900602","19900602",,,,,"0000","64400",,
"1986","19870530","19870530",,,,,"0000","395000",,
"1987","19880318","19880318",,,,,"0000","35000",,
"1988","19890605","19890605",,,,,"0000","1705400",,
"2017","20180524","20180531",,,,,"5000","389652","0000","2786"
"1988","19890527","19890527",,,,,"0000","182000",,
"1988","19890524","19890524",,,,,"0000","170000",,
"1988","19890607","19890607",,,,,"0000","253300",,
"2016","20170519","20170527",,,,,"5000","1440434","0000","5785"
"2018","20190606","20190610",,,,,"5000","137402","0000","1346"
"1989","19900531","19900531",,,,,"0000","332400",,
"1992","19930609","19930609",,,,,"0000","1045000",,
"1991","19920605","19920605",,,,,"0000","3189000",,
"2021","20220528","20220601",,,,,"5000","2388001","0000","4786"
"1995","19960605","19960605",,,,,"0000","1670000",,
"1952","19530507","19530507",,,,,"0000","111230",,
"1952","19530507","19530507",,,,,"0000","46000",,
"2014","20150424","20150426",,,,,"5000","593874","0000","5091"
"2020","20210524","20210527",,,,,"5000","2478966","0000","15717"
"2020","20210601","20210608",,,,,"5000","1470187","0000","7388"
"2011","20120515","20120530","5000","99029","0000","205","5000","3069",,
"2014","20150424","20150426","0000","75065",,,"0000","135",,
"2018","20190524","20190527",,,,,"5000","602977",,
"2005","20060518","20060518","5000","198596","0000","2089","5000","201",,
"1998","19990519","19990519",,,,,"0000","1415000",,
"2018","20190524","20190527","5000","101054","0000","203",,,,
"2015","20160502","20160503",,,,,"5000","51184","0000","428"
"1990","19910625","19910625",,,,,"0000","1810000",,
"2004","20050510","20050510",,,,,"0000","1425000",,