*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008129137
Feb002815281
Mar0644700111
Apr33580064
May9963114001086
Jun112278398002687
Jul31235464001702
Aug11426400279
Sep0219800200
Oct00850085
Nov00590059
Dec00442504550
Total2745591759116857041