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*Excludes Observations that spanned multiple years

Pre 19704
19702
19712
197237
197312
19740
19750
19762
197717
19781
19791
19803
19812
19820
19831
19844
19859
198613
198740
198842
198926
1990106
1991224
1992104
1993204
199443
199595
1996122
1997111
199815
199918
200023
200152
200214
200324
200443
200521
200629
200729
200840
200942
2010177
2011167
201219
2013127
2014169
2015138
2016212
2017348
2018301
2019267
20200
20210
Total3502