*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00028342370
Feb3326112138417
Mar91861200639
Apr102581032001192
May2871341769002190
Jun2111481068001427
Jul632349700583
Aug3234900354
Sep5338700395
Oct0028100281
Nov0027000270
Dec0016019451106
Total68338966864114259224