*Excludes Observations that spanned multiple years

Pre 1970658
1970120
197111
197228
197312
19748
197549
197616
197759
197854
197943
1980117
198111
198215
19836
19843
19858
19865
19872
19883
19891
19905
19915
199212
199318
199419
199516
199614
199714
199813
199917
200012
200117
2002252
2003337
20041792
2005487
2006502
2007150
2008220
2009617
2010373
2011153
2012107
2013103
201426
201532
201656
201784
201892
201927
20208
202113
202213
20239
20247
Total6851