*Excludes Observations that spanned multiple years

Pre 197039
19705
19710
19720
19730
19740
19750
19760
19770
19781
19790
19801
19810
19820
19830
19840
19850
19861
19870
19880
19891
19900
19914
19921
199311
199427
199554
19965
19978
19982
19997
20000
20010
20021
200315
20045
200550
200684
200728
2008209
2009252
2010171
201186
2012136
2013139
2014147
201561
201645
201713
20180
Total1609