Table:
text: List of Olympic medalists in athletics (men)
Men's events
Decathlon
Rank_ Athlete Nation Olympics Gold Silver Bronze Totalmin_2_medals
1 Bob Mathias Category:Articles with hCards United States (USA) 1948–1952 2 0 0 2
1 Daley Thompson Category:Articles with hCards Great Britain (GBR) 1980–1984 2 0 0 2
3 Milt Campbell Category:Articles with hCards United States (USA) 1952–1956 1 1 0 2
3 Rafer Johnson Category:Articles with hCards United States (USA) 1956–1960 1 1 0 2
3 Roman Šebrle Category:Articles with hCards Czech Republic (CZE) 2000–2004 1 1 0 2
3 Bryan Clay Category:Articles with hCards United States (USA) 2004–2008 1 1 0 2
7 Mykola Avilov Category:Articles with hCards Soviet Union (URS) 1972–1976 1 0 1 2

text: List of Olympic medalists in athletics (men)
Men's events
Decathlon
Rank_ Athlete Nation Olympics Gold Silver Bronze Totalmin_2_medals
8 Akilles Järvinen Category:Articles with hCards Finland (FIN) 1928–1932 0 2 0 2
9 Hans-Joachim Walde Category:Articles with hCards West Germany (FRG) 1964–1968 0 1 1 2
10 Floyd Simmons Category:Articles with hCards United States (USA) 1948–1952 0 0 2 2
10 Vasili Kuznetsov Category:Articles with hCards Soviet Union (URS) 1956–1960 0 0 2 2

Question: How many silver medalists have been won in the list of Olympic medalists in athletics (men's) decathlon?