*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001404405
Feb001120140252
Mar0427300277
Apr1722400232
May72632500295
Jun163303500381
Jul66223700305
Aug4124700252
Sep0019500195
Oct0014000140
Nov0016000160
Dec00780431509
Total34667172619753403