*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan25001026
Feb100015025
Mar0011231125
Apr0012085214
May00114097427
Jun00341099321165
Jul0073496362
Aug0002031204
Sep0021630165
Oct0001160116
Nov00095095
Dec10300160119
Total1380562797523043