*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19801
19810
19820
19830
19843
19852
19860
19873
19880
19890
19901
19914
19929
199312
199410
199510
199635
19976
19981
19990
20007
20010
200211
200314
20044
20051
20062
20073
200811
20096
20101
20112
20122
20131
20141
20151
20163
20171
20187
20191
20205
20213
20225
20231
20240
Total191