*Excludes Observations that spanned multiple years

Pre 19701
19700
19711
19722
19730
19742
19751
19760
19770
19780
19791
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19901
19910
19921
19931
19940
19950
19960
19974
19980
19992
20000
20010
20020
20031
20040
20050
20060
20073
20087
20094
20100
20110
20120
20130
20140
20150
20161
20170
20182
20191
20205
20216
20227
20233
20241
Total58