*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001364365
Feb0172099172
Mar0320100204
Apr01329300306
May2165353001708
Jun5502283005110
Jul141958949002921
Aug12973300754
Sep2567300680
Oct1151100513
Nov0029900299
Dec001210597718
Total36866539881106013750