*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19811
19820
19830
19840
19851
19860
19872
19880
19891
19900
19911
19923
199319
19940
19952
19960
19970
19980
19993
20004
20010
20020
20030
20041
20053
20060
20070
200811
20095
20108
20111
20121
201310
20141
20150
20167
20170
20183
20190
20200
20210
20220
20231
20240
Total92