*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan821400096
Feb261026053
Mar00037542
Apr00344855
May00733525942936
Jun00108941033611240
Jul00687350215900
Aug00522618249
Sep0001523155
Oct00052052
Nov00025025
Dec44200250467
Total550153126891798521270