*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00043422465
Feb0020320163386
Mar6927600291
Apr92436100394
May25371666001062
Jun4223831052003477
Jul2444439600864
Aug1829800307
Sep1844400453
Oct0137701379
Nov0024802250
Dec00167710241198
Total108324844887016129526