*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19863
19871
198816
19890
19900
19915
19923
19938
19944
19958
19960
19971
19981
19991
20004
20012
20023
20030
20041
20050
20060
20072
20083
20091
20100
20110
20122
20130
20141
20151
20162
20170
20183
20190
20200
20211
20223
20230
20240
Total82