*Excludes Observations that spanned multiple years

Pre 197048
19702
19710
19720
19730
19743
19751
19763
19773
19783
19795
19805
19813
19825
19832
19844
19854
19862
19874
19882
19893
19903
199111
19924
199316
199425
1995124
1996117
1997127
1998128
199958
200058
200151
2002114
2003107
2004162
2005351
2006134
2007764
20081040
2009323
2010682
2011453
2012124
2013264
2014156
201521
2016166
201710
20188
201946
20205
20210
Total5754