*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002432613285
Feb3515701114393028
Mar23454840004908
Apr177936122006392
May4881958642009325
Jun4401533847004440
Jul153262240002419
Aug931741001753
Sep432047002054
Oct001769001769
Nov001708001708
Dec00897126993597
Total12975233542336739944678