*Excludes Observations that spanned multiple years

Pre 19703
19700
19711
19720
19730
19740
19751
19760
19770
19780
19790
19801
19810
19820
19830
19841
19851
19865
19873
19884
198916
199023
199114
19923
199318
19947
199521
19962
19974
19982
199915
200017
20016
20022
200333
200443
200514
200650
200746
200860
200938
201050
201150
201275
201366
201460
201542
201649
201752
201846
201937
202015
202130
202228
20233
20242
Total1059