*Excludes Observations that spanned multiple years

Pre 197011
197023
197139
197222
197318
197441
19757
19763
19779
197832
197980
19801
198169
19826
198312
198435
198512
19866
19875
198820
198931
199031
199146
199228
199352
199454
199569
199655
199766
199863
1999120
2000194
2001232
2002156
200353
200429
200530
200649
200726
200822
200953
201053
201146
201246
201331
201462
201557
201645
201751
2018112
2019117
202074
202183
202298
202349
20243
Total2837