*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00014791805
Feb15262701262574
Mar12810058900817
Apr17222754600945
May19153877001121
Jun12097930001147
Jul593659100686
Aug151550200532
Sep71358200602
Oct2238600390
Nov1132300325
Dec0119729171117
Total71057157931719709061