*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19730
19740
19750
19760
19770
19780
19790
19800
19810
19820
19830
19840
19850
19862
198710
19887
19892
199012
19911
19924
19934
19949
19957
19961
19974
19982
19991
20006
20015
20022
20033
20040
20051
20064
20073
20080
20095
20109
20112
201217
201321
20144
20151
20160
20172
20182
20193
20201
20210
20221
20230
20240
Total161