*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0015309315
Feb00864119209
Mar04075173004248
Apr5968334001307
May940419300606
Jun3645723500728
Jul334421800295
Aug10925700276
Sep2328100286
Oct0524800253
Nov0217400176
Dec00650461526
Total955967226598899225