*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0007267274
Feb00862111199
Mar0019900199
Apr0010600106
May533140700743
Jun1314761200002689
Jul13867994001874
Aug4857100583
Sep2343600441
Oct0026900269
Nov0016300163
Dec00473351401
Total3726854478127297941