*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002727
Feb000033
Mar005005
Apr5623800249
May2221055001079
Jun602682500911
Jul31533500371
Aug11226800281
Sep3036500368
Oct0281100813
Nov0032400324
Dec00460117163
Total11263427201474594