*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002323
Feb004026
Mar00700070
Apr5298100988
May2871985002020
Jun5532340002398
Jul1821534001554
Aug6087400880
Sep1047500476
Oct0014900149
Nov00460046
Dec001004050
Total1131484680658660