*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970023004678
1970005038
19710090312
1972004015
19730080311
19740180211
19750180312
197600100515
197700130821
197810100516
197931180628
198041120825
1981201301328
1982101801332
198301180625
1984011001122
19851180616
198613210934
198700230629
1988212101034
198918320950
19904306209105
19914257209110
1992596101085
1993102791010138
19941053138017218
1995624101017148
19963398009131
1997333133015184
1998344139018204
1999232110014158
2000331177016227
2001810166120205
200213182011197
2003416241010271
2004420287011322
200525213014234
2006212282114311
2007311254220290
2008125288417335
2009214327011354
201087359015389
2011714374018413
2012524434053516
2013912813039873
20142047829067963
2015191998601061130
20162415113301281300
20172344144501091621
2018173514530911596
20192223144101111597
20201223186901202024
20211514160001331762
2022191416350891757
202316230030
202403150220
Total297784181128152920730