National Institute for Health Promotion (OEI). The survey revealed amongst others that the last sexual encounter of 9.4% of its participants was unprotected. Sziget Festival is notable in that it contains acts from many different genres. 2006 saw, among others, a blues stage, a jazz tent, a world music stage, alongside the main stage with more typical popular rock acts. The festival is popular with west Europeans. Around 50% of visitors come from outside Hungary, with the largest group coming from the Netherlands. Many also come from Belgium, the UK, Germany, Italy, France, Ireland and Romania. Being located on an island, some festival goers have tried to enter by swimming across the Danube or by paddling across in inflatable rafts. The organisers very much discourage these attempts as it is dangerous due to the tricky nature of the fast-flowing Danube river. 2008 In 2008, Sziget Festival lasted from 11 to 18 August. The festival, instead of 7+1 days as in 2007, was 5+2 days long, with a "zeroeth day" that featured one major gig (Iron Maiden) and a special "minus first day" called "Day of Hungarian Songs" that headlined a number of popular Hungarian rock bands (including LGT and Beatrice). As well as Iron Maiden, R.E.M., Mass Hysteria, Babyshambles, Sex Pistols, Jamiroquai, Anti-Flag, Flogging Molly, Alanis Morissette, The Killers, The Kooks, Kaiser Chiefs, The Cribs, Speak and many other were also confirmed, the day of their performance is available at the Sziget website. The length of the festival was reduced so that the residents living in the neighborhoods nearby would have less trouble because of the noise. The organizers plan to take further steps to reduce noise: the metal stage will be open until 11 pm only and noise filtering walls will be built near the noisiest stages. 2009 Sziget 2009 was 10–17 August 2009. The festival had a 5+2 day schedule again. The "zeroeth day" had a Rock Against Racism concert, featuring mostly Hungarian bands. The "minus first day" had one major gig again, this time the 20th anniversary concert of Hungarian rock band Tankcsapda. The Lineup: Main Stage IAMX, Nouvelle Vague, Ska-P, Snow Patrol, Lily Allen, Miss Platnum, The Ting Tings, Die Toten Hosen, Bloc Party, Fatboy Slim, Haydamaky, Jet, Primal Scream, Pendulum, The Prodigy, The Subways, Editors, Klaxons, Manic Street Preachers, Placebo, Disco Ensemble, Danko Jones, Maxïmo Park, The Offspring, Faith No More World Music Main Stage