*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003145148
Feb00610101162
Mar03317800211
Apr118744700635
May42105154002263
Jun112825147002983
Jul24631891001546
Aug12433500351
Sep0024400244
Oct0010600106
Nov00530053
Dec00280275303
Total525785264435219005