*Excludes Observations that spanned multiple years

Pre 1970137
19704
19711
19721
19732
197430
19755
19766
19774
19787
19797
198010
19818
19824
19832
19845
19854
19864
19873
19883
19892
19902
19917
19925
19937
199414
199538
199630
199742
1998119
199941
200052
200132
200273
2003124
2004157
2005228
200697
2007247
2008166
2009190
2010175
201144
2012136
2013175
201417
201527
201616
201739
201847
201928
202035
202136
202231
202349
20243
Total2778