*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001515
Feb0050510
Mar2381096001136
Apr171072787002911
May1031873503003793
Jun1221833011003316
Jul61621655001778
Aug16251401001442
Sep341019001026
Oct1054900550
Nov0013800138
Dec011903757
Total3256071518305716172