*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003262265
Feb0086079165
Mar01015700167
Apr11942900449
May31315761002079
Jun281156968002152
Jul7711139500583
Aug471133900397
Sep6437900389
Oct0143400435
Nov0021600216
Dec00750494569
Total1622627423938357866