*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00010447457
Feb001671221389
Mar0944100450
Apr31059100604
May75481360005848
Jun14172818200018115
Jul14631442270010555
Aug9201750001779
Sep131058001062
Oct0048000480
Nov0022600226
Dec00710705776
Total48291181019111137340741