*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007538545
Feb001682211381
Mar0242300425
Apr1432800333
May2853000540
Jun61131600333
Jul6122200229
Aug5231900326
Sep0256200564
Oct0179700798
Nov1044100442
Dec001700630800
Total21314276913795716