*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 197044904057
1970004015
1971030014
1972001045
1973013037
19740240410
19750450413
19760350917
197701120518
19780220610
197917100826
198005801124
198102501219
198203801021
1983031001427
198403501018
19851150916
1986091301335
1987032601847
1988162301646
19890122801151
199096723014113
19918263101075
1992119220951
199378634011138
1994318472016275
1995510942015171
1996913559015218
1997656755016644
199844136709493
1999133059013403
2000152946017593
2001555158017631
20022434101014551
20031624122012759
20046727108016857
20056558200121786
200614553246114828
20070466192018676
200811281323111627
20097372384013776
201016400500019935
20118330562024924
2012209155460441525
2013610185830391646
20141010385550571660
20158129969901162122
201613144591501242497
2017171887116601153185
2018152100121011323458
2019252477133311153951
202052256184511254232
202162577166601234372
202272685155201334377
202319160026
Total27027541155786165645051