*Excludes Observations that spanned multiple years

Pre 197074
19700
19711
19720
19732
19741
19753
19761
19772
19780
19791
19800
19811
19822
19832
19840
19851
19869
19874
19888
19894
19903
19918
19928
19935
19944
19954
19967
199712
19983
199923
2000130
2001296
200264
2003286
2004200
2005288
2006153
2007182
2008322
2009624
2010248
20111122
2012689
20131140
20141092
20151079
2016393
2017148
2018256
201981
202083
202185
202224
20230
Total9178