*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008665673
Feb001782196376
Mar72335400384
Apr61235000368
May3854317000751
Jun109889141001139
Jul127153854001134
Aug343871500787
Sep10458100595
Oct0034400344
Nov0022900229
Dec0015929631124
Total331166240751218247904