*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007879886
Feb18283001320667
Mar12914665000925
Apr158267599001024
May21050982001242
Jun128981065001291
Jul653668700788
Aug162066800704
Sep81375200773
Oct2149000493
Nov1141000412
Dec01243210431289
Total735661684610224210494