*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197000501520
1970001023
1971002057
1972001045
1973004037
1974003036
1975005027
1976002068
19771060815
1978002046
19790050510
19800060511
198100101011
198200601319
19830040610
19841020710
19850050813
19861180717
198700110920
1988102501642
198901150925
1990001801230
199116340647
1992221701334
199310310739
1994034201459
1995434701367
1996223701354
1997423101855
1998224901265
1999102601239
2000014501965
2001104701967
2002004301053
2003125701474
2004003802058
2005003102859
2006004102364
2007005712381
2008015611775
20090473025102
20102285122112
201110146136184
201221142140186
201303215045263
201436216067292
2015032851110399
2016113630125490
2017424111134552
2018323950106506
201942466099571
202023523088616
2021315950127726
2022223220131457
202311100921
202401130317
Total51605126716076851