The graph represents the details of how many tourists arrived in South/North America, Central/Eastern Europe, South-East Asia and Sub-Saharan Africa within 15 years period since 1990.
Overall, there was an established upward trend in majority of locations throughout the whole period. Although, Central and Eastern Europe shown the most enormous positive changes, in Africa and South America, on contrast, there were tiny differences. Interestingly, North America met an insignificant decline, after stable raise, by the end.
In general, Sub-Saharan Africa and South America were the least popular, about 10 million of tourists in the 1990, but it raised to 25 and 15, respectively, by 2005. South-East Asia remained upward trend, started with 25 million and ended with 45 million by the end. While in North America the trend was similar to Asia, in the first 10 years, with a little decline from 90 to 80 in the last 5 years.
Also, there were the most altered number of arrived tourists in Central and Eastern Europe. For instance, in 1990, there were about 30 million, which has grown to 80 million after a huge increase over 15 years.