*Excludes Observations that spanned multiple years

Pre 19700
19700
19710
19720
19730
19740
19752
19760
19772
19780
19793
19800
19811
19820
19831
19841
19850
19861
19872
19883
19890
19902
19911
19921
19931
19940
19958
19963
19974
19980
19995
20000
20018
20021
20030
20040
20052
20062
20070
20080
20090
201022
201148
20121
20135
20142
20152
201619
201720
201853
201925
202010
20219
202250
2023110
20244
Total434