*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004408412
Feb001201171292
Mar0433300337
Apr4221135001161
May3561231263007421
Jun58980772970017162
Jul4114674713006221
Aug14363215003265
Sep221749001753
Oct0026700267
Nov0012400124
Dec00751547623
Total15417461202916112639038