*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19751
19760
19770
19781
19790
19800
19810
19822
19830
19840
19852
19860
19870
19881
19891
19900
19910
19927
19931
19943
199516
19961
19972
19981
19991
20000
20010
20020
20034
20040
20050
20060
20070
20088
20093
20100
20114
20121
20132
20141
20151
20163
20170
20180
20190
20200
20211
20221
20230
20240
Total70