*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00001313
Feb0080210
Mar6551385001446
Apr27883128003243
May921223347003561
Jun1111672404002682
Jul50531451001554
Aug10221527001559
Sep351238001246
Oct1060800609
Nov0010400104
Dec011002738
Total3005131521004216065