*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002432613285
Feb3515711114413031
Mar23454851004919
Apr177946147006418
May4891958653009337
Jun4401533848004441
Jul153262240002419
Aug931741001753
Sep432047002054
Oct001770001770
Nov001709001709
Dec00897126993597
Total12985243547436740144733