*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19860
19871
19880
19890
19901
19910
19920
19930
19940
19950
19968
19977
19984
19991
20002
20010
20020
20030
20040
20050
20060
20072
20082
20092
20108
20112
20120
20135
20141
20154
20164
20170
20185
20192
20200
20210
20220
20231
20242
Total65