*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008134893570
Feb091239612292483
Mar71272242002376
Apr83372082002427
May244741380005145
Jun746397403006874
Jul4514932560004098
Aug7321891001930
Sep171634001642
Oct011402001403
Nov031101001104
Dec00542824803030
Total166131471547695719836082