Task: Question Generation
Input (English): Passage: Bangkok is one of the worlds top tourist destinations. Of 162 cities worldwide, MasterCard ranked Bangkok as the top destination city by international visitor arrivals in its Global Destination Cities Index 2018, ahead of London, with just over 20 million overnight visitors in 2017. This was a repeat of its 2017 ranking (for 2016). Euromonitor International ranked Bangkok fourth in its Top City Destinations Ranking for 2016. Bangkok was also named "Worlds Best City" by Travel + Leisure magazines survey of its readers for four consecutive years, from 2010 to 2013. As the main gateway through which visitors arrive in Thailand, Bangkok is visited by the majority of international tourists to the country. Domestic tourism is also prominent. The Department of Tourism recorded 26,861,095 Thai and 11,361,808 foreign visitors to Bangkok in 2010. Lodgings were made by 15,031,244 guests, who occupied 49.9 percent of the citys 86,687 hotel rooms. Bangkok also topped the list as the worlds most popular tourist destinations in 2017 rankings.
Output (English): How many more Thai visitors were there than foreign visitors to Bangkok in 2010?