*Excludes Observations that spanned multiple years

Pre 197093
19704
19710
19720
19731
19740
19750
19762
19774
19782
19790
19802
19810
19820
19830
19840
19850
19861
19870
19880
19895
19905
19916
19929
199315
19942
19952
19966
19973
19989
199916
20005
20013
20022
200362
200463
200558
2006126
200737
2008238
2009204
2010150
201162
2012104
2013122
2014120
201550
201625
20172
Total1620