*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19821
19831
19840
19850
19860
19873
19884
19893
19902
19913
19927
19936
19944
199528
19966
19979
19988
199920
200019
20014
20022
20030
20040
200517
20066
200714
20086
20097
20102
20111
20120
20132
20140
20150
20164
20172
201815
20198
202019
20213
202227
202310
20240
Total275