Table:
Year | Place | Gold | Silver | Bronze
1962 | Cairo | Mercedes Mata (VEN) | Marjorie Annan (USA) | Elena Shebashova (URS)
1966 | Wiesbaden | Claudia Smirnova (URS) | Mercedes Garcia (VEN) | Michele Valery (FRA)
1967 | Bologna | Larisa Gurvich (URS) | Claudia Smirnova (URS) | Mirella Lenzini (ITA)
1969 | San Sebastian | Nuria Ortiz (MEX) | Larisa Gurvich (URS) | Elena Shebashova (URS)
1970 | Phoenix | Larissa Korchinskaya (URS) | Nuria Ortiz (MEX) | Kari Linden (NOR)
1971 | Bologna | Nuria Ortiz (MEX) | Larissa Korchinskaya (URS) | Kari Linden (NOR)
1974 | Bern | Larissa Korchinskaya (URS) | Saskia Brixner (FRG) | Evior Melander (SWE)
1975 | Munich | Larisa Gurvich (URS) | Pinky Le Grelle (BEL) | Ruth Jordan (FRG)
1977 | Antibes | Ruth Jordan (FRG) | Ila Hill (USA) | Bianca Rosa Hansberg (ITA)
1978 | Seoul | Bianca Rosa Hansberg (ITA) | Terry Bankey (USA) | Ruth Jordan (FRG)
1979 | Montecatini Terme | Bianca Rosa Hansberg (ITA) | Larisa Gurvich (URS) | Svetlana Yakimova (URS)
1981 | Tucuman | Lanying Wu (CHN) | Ila Hill (USA) | Bianca Rosa Hansberg (ITA)
1982 | Caracas | Svetlana Yakimova (URS) | Meimei Feng (CHN) | Weiping Shao (CHN)
1983 | Edmonton | Svetlana Yakimova (URS) | Nuria Ortiz (MEX) | Terry Carlisle (USA)
1985 | Montecatini Terme | Terry Carlisle (USA) | Ling Liu (CHN) | Weiping Shao (CHN)
1986 | Suhl | Svetlana Demina (URS) | Michaela Rink (FRG) | Connie Schiller (USA)
1987 | Valencia | Meimei Feng (CHN) | Bonnie Mc Laurin (USA) | Nuria Ortiz (MEX)
1989 | Montecatini Terme | Shan Zhang (CHN) | Antonella Parrini (ITA) | Erzsebet Vasvari (HUN)
1990 | Moscow | Svetlana Demina (URS) | Erzsebet Vasvari (HUN) | Shan Zhang (CHN)
1991 | Perth | Jong Ran Pak (PRK) | Svetlana Demina (URS) | Erzsebet Vasvari (HUN)
1994 | Fagnano | Erdzhanik Avetisyan (ARM) | Diána Igaly (HUN) | Daniela Bolis (ITA)
1995 | Nicosia | Zemfira Meftakhetdinova (AZE) | Connie Schiller (USA) | Diána Igaly (HUN)
1997 | Lima | Antonella Parrini (ITA) | Diana Valk (NED) | Jaana Pitkanen (FIN)
1998 | Barcelona | Diána Igaly (HUN) | Shan Zhang (CHN) | Andrea Stranovska (SVK)
1999 | Tampere | Erdzhanik Avetisyan (RUS) | Cristina Vitali (ITA) | Svetlana Demina (RUS)
2001 | Cairo | Zemfira Meftakhetdinova (AZE) | Olga Panarina (RUS) | Cristina Vitali (ITA)
2002 | Lahti | Diána Igaly (HUN) | Andrea Stranovska (SVK) | Elena Little (GBR)
2003 | Nicosia | Ning Wei (CHN) | Katiuscia Spada (ITA) | Diána Igaly (HUN)
2005 | Lonato | Veronique Girardet-Allard (FRA) | Cristina Vitali (ITA) | Danka Bartekova (SVK)
2006 | Zagreb | Erdzhanik Avetisyan (RUS) | Chiara Cainero (ITA) | Danka Bartekova (SVK)
2007 | Nicosia | Christine Brinker (GER) | Ning Wei (CHN) | Chiara Cainero (ITA)
2009 | Maribor | Christine Brinker (GER) | Sutiya Jiewchaloemmit (THA) | Katiuscia Spada (ITA)

Question: who won the only gold medal in 1962?
Answer: Mercedes Mata

Question: which country has won more gold medals: china or mexico?
Answer: China

Question: which country has the most bronze medals?
Answer: Italy

Question: how many gold did u.s.a win
Answer: 1

Question: what is the total amount of winnings for the united states in gold, silver and bronze?
Answer: 9

Question: what is the total of silver for cairo
Answer: 0