context: World Cup competitions were held with rugby union teams from different countries of the world. Every four years the competition is known as the Rugby World Cup. The International Rugby Board organizes the competition. The first rugby competition was held in the 5th. The next Rugby World Cup will be held in England as a welcoming country in the Twenty20. Also, the Rugby World Cup Competition will be held in Japan on June 26. [5] The New Zealand National Rugby Union team is the current champion of the tournament in the 21st.
question: How many years does the Rugby Football World Cup take place?