*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002811561184
Feb014197400827
Mar32062564002773
Apr148504680005544
May153141809290015262
Jun3583094413220032624
Jul289647278980014659
Aug62493063003174
Sep6122238002256
Oct001083001083
Nov0029600296
Dec00171011421313
Total885527142466335269880995