*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002811631191
Feb014277402837
Mar22082610002820
Apr158544757005626
May1261424110350015402
Jun3073114614970032950
Jul241658380310014855
Aug57553120003232
Sep6122257002275
Oct001087001087
Nov0029900299
Dec00173011461319
Total754531002529335271181893