*Excludes Observations that spanned multiple years

Pre 19705
19700
19711
19720
19731
19740
19750
19760
19770
19781
19790
19800
19810
19820
19831
19840
19850
19861
19871
198813
19892
19905
19912
19929
199311
19945
19956
19969
199715
19981
19995
20001
20010
20020
200313
200413
20057
20061
20076
200825
200910
201012
20118
20129
201325
201416
201511
201617
20177
201819
20199
202013
20213
20226
202318
202423
Total366