More perhaps than any other European nation, the Swiss are accustomed to looking after foreign travelers. As early as the 18th century, wealthy French, Germans and Italians were treating the country as a amusement center while, in the 19th century, it became the major holiday playground for the British nobles. Today, it attracts visitors from all over the world. The Swiss are clear about the importance of tourism to their economy, which contributes about eight percent of Gross National Product, and helps the industry greatly. Managers of hotels the world over go to Switzerland to learn how to do the job, and a generally high standard can be expected from the great majority of the country's hotels, most of which are small and pride themselves on a personalized service. Public transport is the best in Europe. Both the Swiss Federal railways and the private railways are fully electrified, and the total network is made up of about 5000 kilometers of track. Under the Fly Baggage system passengers can check luggage in at 116 railway stations and have it automatically carried to their flight. The national highway system is equally well planned, and the mountain roads offer views of some of the country's most breathtaking scenery. Also serving the mountains is an effective system of railways and cable ways, while more than 160 passenger cars cross the lakes and rivers to and fro. Hiking in the mountains is equally popular with Swiss nationals and foreign visitors. For those who want to view the country from a height without having to climb the mountain themselves, it is always possible to take in the view from a balloon. According to the passage, Switzerland is now often visited by   _  .
wealthy French rich Germans and Italians noble British people from various countries