*Excludes Observations that spanned multiple years

Pre 1970147
19702
19711
19720
19734
197413
19758
19763
19774
19782
19790
19801
19810
19822
19833
19841
19850
19862
19870
19880
19890
19902
199141
199220
199328
199433
199588
199692
199768
199888
1999104
200062
2001173
2002162
2003204
2004210
200581
2006171
200768
2008172
2009118
2010128
201164
201249
201391
201475
201544
2016116
201749
201853
201937
202053
202131
202252
2023124
202422
Total3166