*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19731
19745
19754
19763
19770
19784
19792
19803
19812
198210
19833
19843
19853
19861
19870
19880
19893
19902
19910
19927
19934
19945
19952
19965
19971
19988
19994
20009
20017
20020
20030
20040
20050
20060
20072
20081
20092
20104
20112
20120
20132
20149
20153
20160
20170
20181
20190
20200
20210
20220
Total129