*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002406408
Feb001291123253
Mar0764600653
Apr0171614001631
May21111381001494
Jun66173900806
Jul30526600301
Aug8118500194
Sep1026200263
Oct0044900449
Nov0031000310
Dec00900318408
Total47202607138477170