*Excludes Observations that spanned multiple years

Pre 1970163
19702
19715
19722
19731
19741
19757
19765
197713
19786
19797
19803
19814
19823
19831
19842
19851
19861
19874
19888
198930
199032
199128
199249
199325
199419
199551
199627
199740
1998106
1999135
200079
2001150
2002120
2003114
2004112
200529
200624
200740
200821
200932
201024
201139
201270
2013131
201495
2015207
2016220
2017101
2018104
201959
20204
202144
202235
20235
20242
Total2642