*Excludes Observations that spanned multiple years

Pre 19703
19700
19710
19720
19731
19741
19752
19765
19776
19781
19791
19803
19812
19821
19831
19841
19853
19862
19876
198833
19890
19901
199194
199266
199344
199421
199519
199614
199740
19986
19994
20009
200179
20027
200350
200452
20057
200659
200719
200827
200930
20109
201133
201231
201346
201465
201554
2016101
201790
201890
2019226
2020113
2021133
202295
202389
20249
Total1904