*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001515
Feb0050510
Mar2381094001134
Apr171092776002902
May1021993517003818
Jun1221843017003323
Jul62651663001790
Aug16271403001446
Sep351020001028
Oct1054900550
Nov0013800138
Dec011903757
Total3256281520105716211