*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0029550561
Feb002003208411
Mar0150500506
Apr0333500338
May227850600786
Jun0617762001379
Jul527667600957
Aug5748600498
Sep0451500519
Oct0251600518
Nov0030200302
Dec001121622735
Total12118849171313807510