*Excludes Observations that spanned multiple years

Pre 19707
19700
19710
19720
19730
19740
19752
19760
19770
19782
19793
19802
19812
19821
19830
19841
19850
19860
19870
19880
19890
19900
19910
19920
19933
19941
19952
19961
199710
19980
19991
20000
20011
20028
20030
20041
20053
200625
200711
20085
200910
2010919
2011486
2012305
20133395
201448
2015150
201619
201759
201840
201936
202029
202154
202220
202356
202456
Total5774