66.4 @ Unley

Today I met a woman; she is 51 years old and interested in running for Unley Council in 2018. It was a brief meeting, but I was impressed by her and convinced that she would make an excellent Councillor.
She asked me what was the average age of the Councillors.
I guessed 64 years.
I've just done the maths and the average age is 66.4 years.
Not a bad guess.
If you recall an earlier blog, I'm also guessing that after the next election there will be 7-9 new faces on Unley Council. My fellow Councillors say that I'm wrong and that there will only be 6 new faces.
As always, I stand by my forecast.