*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003101104
Feb112202852
Mar374134800426
Apr1267044100637
May19571740001006
Jun2821411165001588
Jul1275669000873
Aug194162200682
Sep1544100447
Oct0021600216
Nov00380038
Dec001807189
Total788426474132006158