*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000100100
Feb0052051103
Mar0651429001494
Apr42764783005063
May30139729610014963
Jun773924020020041319
Jul4945153924008488
Aug12282093002133
Sep0121882001894
Oct1087400875
Nov00940094
Dec10340245280
Total1745810818128039676806