*Excludes Observations that spanned multiple years

Pre 197011
19700
19710
19720
19732
19740
19750
19760
19770
19782
19790
19800
19810
19820
19831
19840
19850
19861
19870
19880
19890
19900
19910
19920
19930
19940
19950
19960
19970
19981
19990
20000
20016
20027
20031
2004580
20053
200639
2007182
2008611
2009647
201022
2011605
2012329
2013445
2014728
20151117
2016719
20171288
2018599
2019477
2020587
2021300
202236
202331
202410
Total9387