*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002727
Feb000033
Mar005005
Apr5624300254
May2221070001094
Jun602683400920
Jul31534000376
Aug11227500288
Sep3036900372
Oct0282500827
Nov0033100331
Dec00460117163
Total11263433801474660