Lincoln Cent 1909-1982 Cent (95% copper)
metal value $0.0226711 metal value as percentage of face value 226.71%
Jefferson Nickel 1946-2007 Nickel
metal value $0.0899178 metal value as percentage of face value 179.83%
Lincoln Cent 1982-2007 Cent (97.5% zinc)
metal value $0.0094289 metal value as percentage of face value 94.28%
www.coinflation.com
Canadian coins do even better
1955 - 1981 Nickel
metal value $0.2224582 (US)