*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006702708
Feb002141226441
Mar11433600351
Apr291632600371
May833338800504
Jun1727153000773
Jul1053468700826
Aug4962800641
Sep1050600507
Oct0030400304
Nov0029600296
Dec002033765971
Total39517744181016936693