*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000000
Feb000000
Mar018009
Apr010132400425
May197093531007643
Jun103202258490021177
Jul6929622404005435
Aug4211266001291
Sep3480900816
Oct00400040
Nov002002
Dec001034
Total1983040762340336842