*Excludes Observations that spanned multiple years

Pre 19702
19702
19713
19720
19730
19740
19750
197614
197719
19781
19792
19803
198125
19820
19832
19841
19854
198643
19873
198863
198917
19904
1991116
1992124
1993147
199457
1995112
199672
1997103
199820
19999
200013
2001126
200246
200370
200445
200527
200658
20074
200817
200921
2010106
201194
201219
201389
2014131
2015147
2016231
2017299
2018285
2019416
2020336
2021356
2022369
202316
20247
Total4296