*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000811041112
Feb0113244376715
Mar0581202001260
Apr01331953002086
May34536352004891
Jun269106412009544
Jul3520132822004870
Aug14311297001342
Sep1796400972
Oct0168900690
Nov0044000440
Dec00286514421733
Total79158961074117292229655