*Excludes Observations that spanned multiple years

Pre 197016
19700
19711
19720
19730
19741
19752
19760
19770
19780
19790
19800
19812
19822
19830
19841
19856
198635
198737
1988219
198943
199034
1991115
199230
199340
199418
1995102
199654
199790
199823
199926
200045
200111
200213
200321
200427
20059
200629
200753
200817
200933
201017
201123
201224
201332
201421
201525
201633
201734
201812
201929
202014
202139
202234
202382
20240
Total1574