*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0013930173057
Feb71491059331869
Mar82802556002718
Apr244883616003948
May1861134697004996
Jun2043656171006740
Jul1191684008004295
Aug15202589002624
Sep6102472002488
Oct011542001543
Nov1092500926
Dec105971016412249
Total8658593008454559137453