*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002332334
Feb00121199221
Mar0754600553
Apr0171353001370
May11081169001278
Jun55962800692
Jul27422800259
Aug5114500151
Sep1020700208
Oct0036700367
Nov0022600226
Dec00670260327
Total39196505736915986