*Excludes Observations that spanned multiple years

Pre 197019
19700
19710
19720
19731
19744
19752
19763
19770
19781
19790
19802
19812
19821
19833
19841
19850
19860
19870
19880
19895
19900
19914
19921
199310
19941
19952
19961
19977
19980
19993
20000
20013
200260
20030
20040
20050
20065
20071
20081
20093
201056
20117
20124
20130
201415
20151
2016301
201748
201874
201911
20203
202135
2022154
202325
20241
Total881