*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002405407
Feb001481123272
Mar0765100658
Apr0171620001637
May21111391001504
Jun66174100808
Jul30526900304
Aug8119600205
Sep1027600277
Oct0046000460
Nov0032900329
Dec00910316407
Total47202617238447268