*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004824828
Feb002471280528
Mar11237900392
Apr251636700408
May713443000535
Jun1657061700852
Jul1043474300881
Aug41074400758
Sep1057500576
Oct0037700377
Nov0039000390
Dec0026138871151
Total3711765130819917676