Table:
text: 2007–08 Grand Prix of Figure Skating Final
Medals table
Medals table
Rank_ Nation Gold Silver Bronze Total
1 Germany 1 0 0 1
1 Russia 1 0 0 1
1 South Korea 1 0 0 1
1 Switzerland 1 0 0 1
5 Japan 0 2 0 2
6 China 0 1 1 2
6 United States 0 1 1 2
8 France 0 0 1 1
8 Italy 0 0 1 1

Question: What was the average number of silver medals France won in the 2007-08 Figure Skating Grand Prix final when ranked higher than 8?