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*Excludes Observations that spanned multiple years

Pre 197084
19701
19710
19721
19731
19748
19752
19761
19770
19781
19793
19800
19811
19825
19833
19844
19850
19866
19873
19882
19894
19901
19918
19929
199341
199429
199554
199644
199751
199850
199934
200056
200194
2002100
200397
2004111
200518
200652
200718
200821
200934
201047
201124
201213
201322
201420
201518
201612
20175
201811
20196
20203
20210
Total1233