*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002323
Feb004026
Mar00700070
Apr5298500992
May2871989002024
Jun5532349002407
Jul1821536001556
Aug6088000886
Sep1047500476
Oct0014900149
Nov00470047
Dec001004050
Total1131484940658686