*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00027309336
Feb362589131407
Mar61760400627
Apr98561003001157
May2821331718002133
Jun2061401036001382
Jul612148600568
Aug3234300348
Sep5338100389
Oct0028000280
Nov0026900269
Dec001381763902
Total66437865163712038798