*Excludes Observations that spanned multiple years

Pre 19705
19701
19711
19720
19730
19740
19750
197611
197711
19781
19793
19804
19813
19820
19834
19841
19855
19862
198713
198874
19898
19908
199190
1992130
1993129
199421
199572
199610
199782
199833
199937
200035
2001141
200242
200384
200463
200532
200645
200737
200836
200965
201097
2011117
201226
2013106
2014115
2015137
2016219
2017287
2018326
2019363
2020331
2021271
2022257
2023318
202443
Total4352