*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003262265
Feb0086079165
Mar01016000170
Apr11943200452
May31315763002081
Jun281156971002155
Jul7711140000588
Aug471134200400
Sep6438100391
Oct0143800439
Nov0022000220
Dec00760495571
Total1622627426938367897