Question: When was the only winter version of the games in which Shawn Machel Johnson won five gold medals held?

Context paragraphs:
Teddy Riner: Teddy Pierre-Marie Riner (] ; born 7 April 1989) is a French judoka.  He has won nine World Championships gold medals, the first and only judoka (male or female) to do so, and two Olympic gold medals.  He has also won five gold medals at the European Championships.  He was a member of the Levallois Sporting Club before joining Paris Saint-Germain in August 2017.

Pan American Games: The Pan American Games (also known colloquially as the Pan Am Games) is a major sporting event in the Americas featuring summer sports, in which thousands of athletes participate in a variety of competitions.  The competition is held among athletes from nations of the Americas, every four years in the year before the Summer Olympic Games.  The only Winter Pan American Games were held in 1990.  The Pan American Sports Organization (PASO) is the governing body of the Pan American Games movement, whose structure and actions are defined by the Olympic Charter.

Track and field at the 2007 Military World Games: At the 2007 Military World Games, the track and field events were held at the G. M. C. Balayogi Athletic Stadium in Hyderabad, India from 15 – 18 October 2007.  A total of 36 events were contested, of which 22 by male and 14 by female athletes.  Kenya topped the medal table with five gold medals and a total of 12 – the track and field competition accounted for all of the African nation's medals at the games, which brought them sixth place on the overall games medal count.  Russia took second with four golds and eight silvers, having the joint greatest medal total.  Poland, the People's Republic of China, and Saudi Arabia also achieved four gold medals.  Athletes from thirty three of the participating countries reached the podium at the four-day competition organised by the Conseil International du Sport Militaire, which had no obvious dominant nation.

Marit Bjørgen: Marit Bjørgen (born 21 March 1980) is a Norwegian cross-country skier and six times Olympic champion from Midtre Gauldal, Norway.  She is ranked first in the all-time Cross-Country World Cup rankings with 106 individual victories.  Bjørgen is also the most successful sprinter in Cross-Country World Cup history, with twenty-nine victories.  One of her most notable achievements was becoming the most successful athlete at the 2010 Winter Olympics by winning five medals, including three gold medals.  She also won three gold medals at the 2014 Winter Olympics.  With her 2014 medals, she became, alongside Raisa Smetanina and Stefania Belmondo, the most medaled female Winter Olympian.  However, she has more gold medals amongst her 10 Olympic medals than either of them.  She is well known for her endurance, fitness, technical strength, mental toughness, and also her finishing sprints.  She excels equally in both classic and skate style skiing, and does well through all distances from the sprint events to the long distance ones.

Matti Nykänen: Matti Ensio Nykänen (   ) (born 17 July 1963) is a Finnish former ski jumper who competed from 1981 to 1991.  Widely considered to be the greatest male ski jumper of all time, Nykänen won five Winter Olympic medals (four gold), nine World Championship medals (five gold) and 22 Finnish Championship medals (13 gold).  Most notably, he won three gold medals at the 1988 Winter Olympics, becoming, along with Yvonne van Gennip of the Netherlands, the most successful athlete at that event.

Katie Taylor: Katie Taylor (born 2 July 1986) is an Irish sportswoman who has competed in both boxing and association football.  s of 2017 , she has won five consecutive gold medals at the Women's World Championships, six gold medals at the European Championships, and five gold medals at the European Union Championships.  Hugely popular in Ireland, she is credited with raising the profile of women's boxing at home and abroad.  Regarded as the outstanding Irish athlete of her generation, she was the flag bearer for Ireland at the 2012 London Olympics opening ceremony before going on to win an Olympic gold medal in the lightweight division.  Taylor turned professional in 2016 under Matchroom Boxing, and is known for her fast paced, aggressive boxing style.

Shawn Johnson: Shawn Machel Johnson (born January 19, 1992) is an American former artistic gymnast.  She is the 2008 Olympic balance beam gold medalist and team, all-around and floor exercise silver medalist.  Johnson is also a five-time Pan American Games gold medalist, winning the team titles in 2007 and 2011, as well as titles in the all-around, uneven bars, and balance beam in 2007.

Michael Phelps: Michael Fred Phelps II (born June 30, 1985) is an American former competitive swimmer and the most decorated Olympian of all time, with a total of 28 medals.  Phelps also holds the all-time records for Olympic gold medals (23), Olympic gold medals in individual events (13), and Olympic medals in individual events (16).  In winning eight gold medals at the 2008 Beijing Games, Phelps broke fellow American swimmer Mark Spitz's 1972 record of seven first-place finishes at any single Olympic Games.  At the 2004 Summer Olympics in Athens, Phelps had already tied the record of eight medals of any color at a single Games by winning six gold and two bronze medals.  At the 2012 Summer Olympics in London, Phelps won four gold and two silver medals, and at the 2016 Summer Olympics in Rio de Janeiro, he won five gold medals and one silver.  This made him the most successful athlete of the Games for the fourth Olympics in a row.

Lidiya Skoblikova: Lidiya Pavlovna Skoblikova (Russian: Лидия Павловна Скобликова ; born 8 March 1939) is a retired Russian speed skater and coach.  She represented the USSR Olympic team during the Olympic Winter Games in 1960 and 1964, and won a total of six gold medals, which is still a record for a speed skater.  She also won 25 gold medals at the world championships and 15 gold medals at the USSR National Championships in several distances.  She was also the first athlete to earn six gold medals in the Winter Olympics and the first to earn four gold medals at a single Olympic Winter Games.  She was the most successful athlete at the 1960 and 1964 Winter Olympics, sharing the honour for 1960 Games with her compatriot Yevgeny Grishin.

Carl Osburn: Carl Townsend Osburn (May 5, 1884 – December 28, 1966) was a United States Navy officer and sports shooter from Jacksontown, Ohio.  After graduating from the United States Naval Academy in 1906, Osburn went on to reach the rank of commander.  He competed in the 1912 Summer Olympics, 1920 Summer Olympics, and 1924 Summer Olympics, winning a total of eleven Olympic medals: five gold medals (including two individual gold medals), four silver medals, and two bronze medals.  He is the most successful shooter at the Olympic Games when individual and team medals are both taken into the account.  His tally of eleven medals made him the all-time leading male medal winner for the United States at the Olympic Games.  In 1972, Mark Spitz tied this record after having won four medals in 1968 and seven in 1972.  Michael Phelps has since broken this record.

Supporting paragraphs: Shawn Johnson Pan American Games
Answer: 1990