*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002432633287
Feb3514181114442881
Mar22454802004869
Apr176956095006366
May4961998576009271
Jun4391533828004420
Jul153262221002400
Aug931689001701
Sep431959001966
Oct001720001720
Nov001653001653
Dec00875127013577
Total13025293483636740844111