*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002323
Feb004026
Mar00700070
Apr5298800995
May2871999002034
Jun5632356002415
Jul1831536001557
Aug6088000886
Sep1047500476
Oct0014900149
Nov00470047
Dec001004050
Total1141585140658708