*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00005151
Feb01100718
Mar00540054
Apr11285900872
May1701484001555
Jun18661094001178
Jul221158600619
Aug20239800420
Sep2043800440
Oct0049200492
Nov0021500215
Dec00410132173
Total64162567101906087