*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00012782794
Feb034964328831
Mar0581231001289
Apr71591052001218
May303758280004068
Jun87177605980018445
Jul4122161365003622
Aug9946500483
Sep0242300425
Oct0042600426
Nov0033400334
Dec001440832976
Total17423965681416194232911