*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0240121127
Feb002212447
Mar41176110120
Apr1063726500408
May1222356000705
Jun11848941001107
Jul712059000681
Aug17742000444
Sep0020500205
Oct00570057
Nov00360137
Dec10330534568
Total476154319426804506