*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002727
Feb000033
Mar005005
Apr5624300254
May2221072001096
Jun602683400920
Jul31534000376
Aug11227500288
Sep3037000373
Oct0282900831
Nov0033500335
Dec00460117163
Total11263434901474671