*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000127688
Feb001401529
Mar00270027
Apr01420043
May046234800810
Jun21781589002372
Jul559934100945
Aug71730500329
Sep6317300182
Oct10420043
Nov00300030
Dec00390389428
Total2128631950124805326