出典:World Tourism Organization, Tourism Market
Trends: World Overview & Tourism Topics 2001(Madrid: World
Tourism Organiation, 2001); Peter Baker, "Tito Plans to
Promot Space Tourism" Washington Post, 9 May 2001; Maldives
data: Worldwatch estimate based on GDP in Human Development
Report 2001 (new York: Oxford University Press, 2001) and international
tourism receipts and arribals in World Overview & Tourism
Topics 2001; projection 2020 for France and China: "Tourism:
China to Become World's Top Destination," UN Wire, 11
October 1999; U.N. Population Division, Demographic Indicators
1950-2050, 1998 revision; www.census.gov;www.hawaii.gov/tourism;
1998 Statistical Report on Tourism in Laos, National Tourism
Authority of Lao PDR (1998). UNDP Human Development Report,
2001. Compiled by Uta Saoshiro and Leanne Mitchell.