*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00002121
Feb004026
Mar00630063
Apr5186700873
May2471811001842
Jun5532258002316
Jul1821504001524
Aug6085400860
Sep1047100472
Oct0014700147
Nov00450045
Dec001004050
Total1091380340638219