*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004410414
Feb001291171301
Mar0433600340
Apr4221141001167
May3561271250007412
Jun58975672710017085
Jul4114604723006224
Aug14383232003284
Sep221760001764
Oct0026800268
Nov0012800128
Dec00761547624
Total15417409203146112839011