Table:
text: Athletics at the 1979 Pan American Games
Medal table
Medal table
Rank_ Nation Gold Silver Bronze Total
1 United States 25 16 11 52
2 Cuba 6 10 9 25
3 Canada 3 3 12 18
4 Mexico 3 2 2 7
5 Brazil 2 1 3 6
6 Jamaica 0 2 1 3
7 Guyana 0 2 0 2
8 Argentina 0 1 0 1
8 Bahamas 0 1 0 1
8 Colombia 0 1 0 1
11 U.S. Virgin Islands 0 0 1 1

Question: What is the lowest number of silver medals received by a nation under 8 at the 1979 Pan American Athletics Games?