When I first moved down here (C.1980) I was informed that Dover, like Thanet was an anomaly in Kent in which one had to apply the 10% rule.
Whatever statistics you look at in Kent Dover is 10% different.
Average salary, teenage pregnancy rate, number of people in high-tech industry, house price, unemployment figures, free school meals, % of pupils passing Kent Test. etc. etc.
Seems a good rule of thumb.....
