*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008665673
Feb001782196376
Mar72335500385
Apr61235300371
May3854517300756
Jun109892144001145
Jul127153854001134
Aug343871600788
Sep10458200596
Oct0034400344
Nov0022900229
Dec0015929631124
Total331166740871218247921