*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000077
Feb004037
Mar0125900260
Apr132136002140
May4103312003326
Jun2363834003872
Jul4452727002776
Aug222007002011
Sep011954001955
Oct0011000110
Nov004004
Dec00201012
Total13981634902016480