*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000000
Feb000000
Mar016007
Apr0148900103
May3103334770010813
Jun56230395080023603
Jul115652138320010468
Aug63192214002296
Sep011198001199
Oct0012000120
Nov008008
Dec002046
Total2373992884540448623