*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001515
Feb0060410
Mar4461120001170
Apr341142501002649
May891902862003141
Jun1141792530002823
Jul51511336001438
Aug1217978001007
Sep2566700674
Oct1039500396
Nov00750075
Dec011002940
Total3076031248004813438