*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19791
19800
19810
19820
19830
19840
19850
19860
19870
19880
19890
19904
199110
199228
199326
199413
19951
199623
19975
19980
19994
20000
20010
200210
20031
20041
20051
20061
20070
200827
200916
20103
201110
20120
20132
20140
20152
20164
20170
20180
20193
20200
20212
20221
20231
20240
Total203