*Excludes Observations that spanned multiple years

  B
b
t
W
w
 
Pre 1970021106275
1970004048
1971002046
1972011057
1973001067
1974014049
1975002068
197602201014
197702301217
1978010067
197910101012
198000201315
198100001717
19820020810
198300301619
198401301721
198500801725
198614701325
1987011301529
1988021601735
1989012401540
1990015411636
19913122111148
1992271101333
199309131012134
1994119159017268
1995418394112294
1996024346014303
19970512201386
1998073601089
199901480527
2000110311016131
20010711001596
20020762107104
2003262140886
20040641301087
2005015161840
20061401521270
200707438014126
200811083709155
20090224101073
201039388018202
201116787011166
2012218380121287
2013220663011282
20141237110023371
20154219136034393
20161283138021443
20174501246019770
20183457175122658
20196502317321849
2020126713130351031
20218574280039901
202211515325033884
202311566315028920
20246498236036776
202502590034
2026000000
Total92713035451188111659