*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003754757
Feb001971244442
Mar2438700393
Apr14562503002573
May241404412004576
Jun583444995005397
Jul931212715002929
Aug28202041002089
Sep2111937001950
Oct0047900479
Nov0033100331
Dec0024718561104
Total221696202445185423020