*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000000
Feb001012
Mar1225700260
Apr19232381002423
May797144760007983
Jun1889025781009994
Jul9612523514004862
Aug1051102001117
Sep00580058
Oct003003
Nov000000
Dec000000
Total3931745188570126702