*Excludes Observations that spanned multiple years

Pre 197051
19700
19711
19721
19732
19741
19751
19760
19775
19783
19790
19800
19811
19821
19830
19840
19850
19861
19870
19880
19890
19900
199113
19922
19932
19940
19957
19964
19972
19980
19990
20000
20010
20023
20033
20040
20050
20060
20070
20081
20090
20100
20112
20120
20130
20141
20150
20163
20171
20180
20190
20200
20212
20221
20230
20240
Total115