*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001515
Feb005049
Mar23889100931
Apr171042210002331
May861962757003039
Jun1112002519002830
Jul52671348001467
Aug1423966001003
Sep3465600663
Oct1039300394
Nov00750075
Dec011002940
Total2866331183004812797