*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005214219
Feb002005272
Mar01470048
Apr15569700753
May82295576002879
Jun1430462398005458
Jul141361148001298
Aug4243300439
Sep1426100266
Oct0126000261
Nov00660066
Dec00423537582
Total4255405948880312341