*Excludes Observations that spanned multiple years

Pre 19705
19700
19711
19720
19731
19740
19750
19760
19771
19780
19790
19800
19810
19820
19830
19843
198552
198632
198757
1988154
198920
199055
199158
199240
199356
199443
1995125
199635
199735
19984
199941
200053
20018
20026
200312
200412
200512
200610
200712
200817
200915
201023
201121
201226
201362
201428
201528
201621
201720
201819
201914
202017
202123
202212
20230
Total1289