Vote Counting 2 Weeks Later… The Election is in the mail day 14

The official election calendar shows the following interruption in vote counting totals:
http://www.secstate.wa.gov/elections/calendar_list.aspx?y=2007
8/21/2007
STATE PRIMARY
9/3/2007
LEGAL HOLIDAY – LABOR DAY
9/5/2007
County Canvassing Boards to certify the primary returns
So it looks like Tuesday, day 14, or Wednesday, day 15 of vote counting, will be the last day of counting in King County, how many people will have votes come [...]