*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00005151
Feb01100718
Mar00540054
Apr11285400867
May1701480001551
Jun18661092001176
Jul221158600619
Aug20239700419
Sep2043800440
Oct0049200492
Nov0021500215
Dec00400132172
Total64162565801906074