*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001126127
Feb012903969
Mar324539800475
Apr1277647800681
May19368863001124
Jun3001431311001754
Jul1395678900984
Aug194174000800
Sep2555300560
Oct1029100292
Nov00780078
Dec0028083111
Total813435555812487055