*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005691696
Feb012101301513
Mar3853700548
Apr6759100604
May68011172001979
Jun1743753147007539
Jul1224982528005038
Aug6171122001145
Sep3454100548
Oct4041200416
Nov0031300313
Dec001280660788
Total577711107016165220127