*Excludes Observations that spanned multiple years

Pre 19709
19701
19712
19720
19731
19741
19750
197614
197718
19784
19791
19803
198124
19822
19830
19842
19854
19864
19872
19887
19895
19903
1991117
1992102
1993120
199426
199522
199661
199790
199811
199969
200024
2001117
200211
200364
200460
200526
200652
20073
200815
200926
201072
2011136
201245
2013151
2014212
2015207
2016301
2017339
2018297
2019396
2020324
2021331
2022360
20237
20240
Total4301