*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004754925539
Feb903718321918393817
Mar625753807004507
Apr10431142595003752
May821723055003948
Jun569932601003263
Jul211352500002746
Aug72111779001862
Sep821359001369
Oct331748001754
Nov222081002085
Dec101230629694206
Total344544424587721030038848