*Excludes Observations that spanned multiple years

Pre 19701
19700
19710
19720
19730
19740
19750
19760
19770
19780
19791
19802
19810
19820
19830
19841
19853
19860
19870
19880
19890
19900
199117
199245
19934
19947
19956
19961
199726
19981
19990
20000
200118
20021
200318
20044
20050
20061
20071
20085
20091
201022
201124
20126
201328
20149
20155
201630
201744
201846
201974
202064
2021110
2022109
2023104
20241
Total840