*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19751
19763
19770
19780
19791
19800
19810
19820
19832
19840
19850
19860
19870
19880
19890
19900
199110
19921
19931
19949
199510
199615
19971
19982
19991
20000
20010
20020
20030
20042
20051
20062
20071
200822
200947
201039
201122
201228
201329
201421
201522
20169
20171
20180
20190
20204
20211
20220
20230
20240
Total310