*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00013872885
Feb012150290506
Mar02181000831
Apr3532293002349
May151073203003325
Jun222943922004238
Jul17731700001790
Aug981346001363
Sep371634001644
Oct111126001128
Nov0062300623
Dec00319211411462
Total705651719115230320144