*Excludes Observations that spanned multiple years

Pre 197032
19701
19710
19721
19730
19743
19752
19761
19771
19781
19792
19800
19810
19820
19831
19840
19851
19862
19870
19880
19890
19901
19912
19920
19930
19940
19952
19960
19973
19981
19993
20001
20010
20020
20032
20040
20050
20060
20071
20082
20092
201034
201113
20123
20133
20142
20150
20160
20170
20180
20190
20200
20210
20220
20230
20240
Total123