*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008665673
Feb001782196376
Mar72335500385
Apr61235400372
May3854517300756
Jun109892144001145
Jul127153858001138
Aug343872100793
Sep10458200596
Oct0034400344
Nov0023000230
Dec0015929631124
Total331166740981218247932