*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001320732086
Feb47801128591683
Mar102562042002200
Apr3481121698002158
May324881857002269
Jun3481542222002724
Jul322822339002743
Aug33221480001535
Sep271375001384
Oct101306001307
Nov0068100681
Dec00550215722124
Total14845281635127450422894