*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19731
19740
19750
19760
19770
19781
19790
19800
19810
19821
19830
19840
19851
19861
19876
19885
19892
19907
19911
19922
19930
19940
199512
19960
19970
19980
19991
20001
20012
20020
20033
20040
20050
20060
20077
20080
20090
20104
20112
20121
201313
201418
20150
20161
20173
20180
20190
20200
20210
20220
20230
20240
Total98