*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002331633186
Feb231011511202141
Mar6303467003503
Apr181185488005624
May1193358309008763
Jun2984506897007645
Jul293432129002465
Aug62102067002139
Sep891834001851
Oct011729001730
Nov011501001502
Dec00683525723260
Total80610003511533685543809