*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000033
Feb001001
Mar00100010
Apr0414100145
May11277214001492
Jun10295392003055
Jul2411151076002215
Aug12437000386
Sep1169400696
Oct0117300174
Nov006006
Dec00011516
Total48535527771188199