*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003485488
Feb111630190355
Mar0728900296
Apr04860090
May0115700122
Jun05672700594
Jul335535800716
Aug3622700236
Sep0112700128
Oct0118400185
Nov0035200352
Dec101332540676
Total810571953512154238