The men who died had an average of 13 years on the job, and only two were under 35.

Patients in the study were followed for an average of 6.5 years.

This process takes an average of 8 to 10 years.

Then they followed them for an average of six years, during which 6,649 died.

The living patients in the study were followed for an average of six years.

The women were followed for an average of almost 10 years.

People keep cars on an average of five years or more today, and that means business for us.

It lives an average of three years in the wild.

Today's heads last an average of eight years, according to the schools association.

The teaching staff is 412 teachers, who have taught for an average of 14 years.