*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003358361
Feb111240144270
Mar0721400221
Apr04650069
May0101700108
Jun05212500546
Jul332533200660
Aug2417800184
Sep01960097
Oct01970098
Nov0021200212
Dec10852454542
Total7965143559563368