*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005122127
Feb003802462
Mar0213000132
Apr12827700306
May104445400508
Jun3510135800494
Jul441524800307
Aug221017600208
Sep3416900176
Oct0010000100
Nov00730174
Dec00481582631
Total115204207167293125