*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007439446
Feb011460133280
Mar2959200603
Apr334972001009
May142462200660
Jun332034900402
Jul24616600196
Aug4020900213
Sep0024400244
Oct0039800398
Nov0039700397
Dec001050417522
Total8094420079895370