*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001464465
Feb011790277457
Mar0467600680
Apr2466400670
May18762100646
Jun362237700435
Jul54527100330
Aug32225400288
Sep84135900444
Oct1025700258
Nov4034000344
Dec00930302395
Total231464091110435412