sentences:  The 2005 all industry earnings average for Knox County was $26,875, up $2,824 or 11.7 percent over the county's 2001 average.The manufacturing industry had the highest average annual earnings at $33,238, increasing $1,695 since 2001.Annual earnings in the information sector increased the most between 2001 and 2005, up $6,518 or 29.7 percent.