*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197011120014
1970050005
197101400014
1972040004
1973030003
1974010001
197502800028
1976011002
19770820010
19781425800101
197903110032
198003000030
198102110022
198201700017
1983070007
1984070007
1985030003
19860930012
1987050005
198802000020
198901910020
199002610027
199103120033
199203510036
199304710048
199405050055
199515260059
1996128100039
1997267220091
199813950045
199911250018
200005850063
200108330086
200201171600133
200331073500145
200402773300310
200511302800159
200601111100122
20070281800289
20082150900161
200911041100116
201001441600160
201104262000446
201204853000515
201301514000191
20140118500123
201501801000190
201631581400175
201742641300281
201802291300242
201912573000288
202002263700263
202111381200151
20220126800134
2023011002
2024000000
Total244984545005553