*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002432613285
Feb3515711114393029
Mar23454849004917
Apr177946122006393
May4881958642009325
Jun4401533847004440
Jul153262240002419
Aug931741001753
Sep432047002054
Oct001769001769
Nov001709001709
Dec00897126993597
Total12975243543436739944690