*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001416281642
Feb004241464889
Mar03283500867
Apr02882800856
May32583132002718
Jun255934160006119
Jul181653924002595
Aug15739600418
Sep2657500583
Oct0073500735
Nov0176900770
Dec01404415151924
Total6310245618219360720116