*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002928012830
Feb001227812722507
Mar0282530002558
Apr3282736002767
May258593190008808
Jun68169613160017345
Jul3449663398008398
Aug15323595003642
Sep263271003279
Oct122357002360
Nov002167002167
Dec10883319552842
Total149306162267040602859503