*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000000
Feb000000
Mar016007
Apr0148900103
May3103334800010816
Jun56230595110023626
Jul115652138340010470
Aug63192217002299
Sep011199001200
Oct0012000120
Nov008008
Dec002046
Total2373994884660448655