*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000033
Feb001001
Mar00100010
Apr0418100185
May11556217001774
Jun13338494003491
Jul2913841202002615
Aug14849200514
Sep111045001047
Oct0122300224
Nov006006
Dec00011718
Total58633834711209888