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*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19751
19760
19770
19780
19791
19800
19810
19821
19833
19844
19850
19863
198729
19889
19895
199010
199125
19926
199312
19947
199527
199637
199732
199825
199916
20008
20018
20022
200321
200423
200516
200614
200726
200815
200929
201024
201118
201211
201324
201419
201517
201636
201726
201826
201939
202033
202129
202213
202343
20240
Total773