*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00015949964
Feb001871222410
Mar0440800412
Apr41080400818
May51303269001577
Jun81390451001849
Jul81851217001410
Aug7201715001742
Sep281525001535
Oct1272300726
Nov0050200502
Dec00227112831511
Total352922802817245413456