*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19751
19760
19770
19781
19791
19800
19810
19820
19830
19841
19850
19861
19870
19880
19890
19902
19910
19921
19930
19945
19950
19962
199712
19983
19991
20001
20011
20020
20032
20040
20052
20060
20070
20080
200911
20103
20118
20124
20136
20142
20153
20164
201710
201825
20191
20200
20210
20222
20230
20240
Total116