*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000910621071
Feb033835395786
Mar0565100656
Apr11463200647
May171468538002023
Jun10325901507004200
Jul646881875002627
Aug91097400993
Sep1794400952
Oct0060200602
Nov0056400564
Dec00252213711625
Total1954785892216282816746