*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003754757
Feb001971244442
Mar2438700393
Apr14562480002550
May221404369004531
Jun573434939005339
Jul931212716002930
Aug28202040002088
Sep2111938001951
Oct0047900479
Nov0033100331
Dec0024718561104
Total218695201235185422895