context: DUBAI , United Arab Emirates -LRB- CNN -RRB- -- A huge man-made island shaped like a date palm tree opened Thursday off the coast of Dubai with a celebrity-studded gala and a three-day party . The island officially opens with a spectacular fireworks display . The Palm Jumeirah increased Dubai 's shoreline by 100 percent after work started on it in 2001 . It features resort hotels , homes , luxury shopping and entertainment . Though the entire island officially opened Thursday , parts of it already opened weeks ago -- including the Atlantis , The Palm , a sister to the Atlantis resort in the Bahamas . The Atlantis played host to the opening celebration Thursday night . Stars including Oprah Winfrey , Michael Jordan , Robert De Niro , Janet Jackson and the Duchess of York were in attendance . Pop star Kylie Minogue performed at the party . Bollywood star Priyanka Chopra started what was billed as the world 's largest-ever fireworks display , with more than 100,000 pyrotechnic devices . When work on the island began , a team of Dutch engineers were employed to create the Palm by using a technique called rainbowing -- a vessel dredging sand from the seabed and spraying and piling it onto the desired area and into the requested shape .
question: How much has the addition of the man-made island increased the Dubai coastline ?
answers.text: 100 percent
content_segment_normalized_text: the palm jumeirah increased dubai 's shoreline by one hundred percent after work started on it in two thousand one .
question_normalized_text: how much has the addition of the man-made island increased the dubai coastline ?