Question: In what year was Bruno Rezende's sport added to the Pan American Games?

Context paragraphs:
2011 Pan American Games: The 2011 Pan American Games, officially the XVI Pan American Games, was an international multi-sport event that was held from October 14–30, 2011, in Guadalajara, Jalisco, Mexico.  Some events were held in the nearby cities of Ciudad Guzmán, Puerto Vallarta, Lagos de Moreno and Tapalpa.  It was the largest multi-sport event of 2011, with approximately 6,000 athletes from 42 nations participating in 36 sports.  Both the Pan American and Parapan American Games were organized by the Guadalajara 2011 Organizing Committee (COPAG).  The 2011 Pan American Games were the third Pan American Games hosted by Mexico (the first country to do so) and the first held in the state of Jalisco.  Previously, Mexico hosted the 1955 Pan American Games and the 1975 Pan American Games, both in Mexico City.  The 2011 Parapan American Games were held 20 days after the Pan American Games have ended.

Antigua and Barbuda at the Pan American Games: Antigua and Barbuda has competed at every edition of the Pan American Games since the seventh edition of the multi-sport event in 1979.  However, Antigua and Barbuda participated in the 1959 Pan American Games as part of the British West Indies and future Prime Minister Lester Bird won a bronze medal in the long jump.  Sprinter Heather Samuel won Antigua and Barbuda's first Pan Am medal in 1995, a bronze in the women's 100 metres.  Sprinter, Brendan Christian won Antigua and Barbuda's first gold medal at the 2007 Pan American Games.  To date, all five of Antigua and Barbuda's medals have been won in the sport of track and field.  Antigua and Barbuda did not compete at the first and only Pan American Winter Games in 1990.

Equestrian at the Pan American Games: Equestrianism made its Pan American Games debut at the first Pan American Games in 1951 in Buenos Aires, Argentina.  It has appeared at every Pan American Games since.  The current Pan American Games equestrian disciplines are Dressage, Eventing, and Jumping.  In each discipline, both individual and team medals are awarded.  Women and men compete together on equal terms.

2015 Pan American Games: The 2015 Pan American Games, officially the XVII Pan American Games and commonly known as the Toronto 2015 Pan-Am Games (French: "Jeux panaméricains de 2015 à Toronto" ), were a major international multi-sport event celebrated in the tradition of the Pan American Games, as governed by Pan American Sports Organization (PASO).  The games were held from July 10 to 26, 2015 in Toronto, Ontario, Canada; preliminary rounds in certain events began on July 7, 2015.  These were the third Pan American games hosted by Canada, and the first in the province of Ontario.  The Games were held at venues in Toronto and seventeen other Golden Horseshoe communities.  The Pan American Games and 2015 Parapan American Games were organized by the Toronto Organizing Committee for the 2015 Pan and Parapan American Games (TO2015).

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.

USA Women's Pan American Team: The Pan American Team is one of the teams under the auspices of the USA Basketball organization.  The Pan American Games are held every four years in the year before the Olympics.  The first Pan American Games were held in 1951, but those games were men only.  The second Pan American games in 1955 included women's teams.  Eligible teams are the members of FIBA Americas.  The USA has participated every year since the 1955 event, except for 1995, when the game were canceled, due to too few teams committed to play.

Volleyball at the Pan American Games: Volleyball for both men and women has been played at the Pan American Games since 1955, when the second edition of the multi-sports event was staged in Mexico City, Mexico.

Racquetball at the Pan American Games: Racquetball has been part of the Pan American Games since 1995 Games in Mar del Plata, Argentina, although it was not included in the 2007 Games.  Racquetball was again included in the 2011 Pan American Games in Guadalajara, Mexico, and the 2015 Pan American Games in Toronto, Ontario.  Racquetball is on the program for the 2019 Pan American Games in Lima, Peru.  The United States dominated the racquetball events in the first three games, but Mexico has been the dominant country in the last two games.

Bruno Rezende: Bruno Mossa de Rezende (born 2 July 1986) is a Brazilian volleyball player, a member of Brazil men's national volleyball team and Italian club Modena Volley, 2016 Olympic Champion, double silver medalist of the Olympic Games (Beijing 2008, London 2012), 2010 World Champion, double gold medalist of the World Grand Champions Cup (2009, 2013), South American Champion (2007, 2009, 2011, 2013), multimedalist of the World League, Pan American Games, Brazilian Champion (2004, 2006, 2008, 2009, 2010, 2013), Italian Champion (2016).

Rugby sevens at the Pan American Games: Rugby sevens at the Pan American Games was held for the first time at the 2011 Pan American Games.  On July 11, 2007, Mario Vazquez Rana, president of the Pan American Sports Organization, (PASO), announced that rugby sevens would be added to the list of sports that will be played at future Pan American Games, after a vote by the organization's general assembly.  Women's rugby sevens was later added to the program for the 2015 Games.

Supporting paragraphs: Bruno Rezende Volleyball at the Pan American Games
Answer: 1955