*Excludes Observations that spanned multiple years

Pre 19702
19700
19710
19720
19731
19740
19750
19760
19770
19780
19790
19800
19810
19820
19831
19840
19850
19861
19872
19881
19893
19905
19914
19920
199310
19943
199520
199620
199718
19982
19991
20003
20017
20022
200319
200419
200513
20065
200712
200816
20094
20107
20113
20122
20131
20149
20156
20167
20177
201811
20199
20203
20214
20222
20230
20240
Total265