*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19741
19750
19760
19771
19780
19792
19800
19811
19821
19831
19844
198576
198630
19877
198868
198925
199043
199127
199224
199340
199426
199577
199628
199715
19982
199965
200065
200111
20025
200345
200449
200536
200660
200757
200870
200964
201080
201174
201266
201350
201449
201544
201670
201748
201857
201946
202026
202156
202246
202326
202437
Total1804