Germany has one of the world's highest levels of schooling, technology, and businesses. The number of young people who attend universities is now three times more than it was after the end of World War II, and the trade and technical schools of Germany are some of the best in the world. German income is, on average, $25,000 a year, making Germany a highly middle class society. A large social welfare system gives people money when they are ill, unemployed, or similarly disadvantaged. Millions of Germans travel outside of their country each year.