*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0006679685
Feb101500177328
Mar2122800231
Apr1144600448
May21471900735
Jun11848100500
Jul111428200307
Aug9441400427
Sep2592300930
Oct1053600537
Nov1020700208
Dec001261748875
Total31574512716046211