answers: 2018
context: the Kvitfjell downhill arena. For the 2026 Winter Games, IOC allowed Stockholm to have the alpine event in Åre, away (road distance). In 1967 the IOC began enacting drug testing protocols. They started by randomly testing athletes at the 1968 Winter Olympics. The first Winter Games athlete to test positive for a banned substance was Alois Schloder, a West German hockey player, but his team was still allowed to compete. During the 1970s testing outside of competition was escalated because it was found to deter athletes from using performance-enhancing drugs. The problem with testing during this time was a lack </s> other column, click on the icon next to the column title." Legkov and Vylegzhanin were initially disqualified by the IOC for doping offences in November 2017, and their 2014 Olympic medals were stripped (gold and silver respectively). However, their results were restored on 1 February 2018 following a successful appeal. Security during both the Olympics and Paralympics were handled by over 40,000 law enforcement officials, including police and the Russian Armed Forces. A Presidential Decree signed by President Vladimir Putin took effect on 7 January, requiring that any protests and demonstrations in Sochi and the surrounding area through 21 March </s> when North Korea joined the Soviet-led boycott of the 1984 Summer Olympics, and when they boycotted the 1988 Games in Seoul, South Korea. North Korea's attendance at the Winter Games has been sporadic; eight of the last thirteen Games have included a North Korean team. During the 1998-2007 Sunshine Policy era, North Korea and South Korea symbolically marched as one team at the opening ceremonies of the 2000 and 2004 Olympics, but competed separately. In 2010 a team competed at the Winter Olympics in Vancouver. North Korea sent 22 athletes to compete in five sports at the Pyeongchang Winter Olympics
question: when was the last time north korea participated in the winter olympics