*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004374378
Feb001014150255
Mar03724500282
Apr744747000924
May1245031200774
Jun4252340100966
Jul456625600367
Aug14932000343
Sep3335300359
Oct0531900324
Nov0231800320
Dec00970524621
Total12315423192810485913