*Excludes Observations that spanned multiple years

Pre 19704
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19821
19830
19845
19852
19862
19870
19881
198931
19902
19918
199212
19931
199415
19956
19967
19975
19981
19993
20009
20012
20021
20034
20041
20056
200613
20077
20083
20096
20102
201112
20120
20131
20142
20152
20163
20174
201822
20196
202013
202121
202213
202315
20240
Total274