*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001515
Feb0050510
Mar2381091001131
Apr171122768002897
May1021993497003798
Jun1221843003003309
Jul62651654001781
Aug16271367001410
Sep3597700985
Oct1053500536
Nov0013600136
Dec011903757
Total3256311505205716065