Tourism in Sweden comprised a relatively small part of the Swedish economy in 2011 at 2.9% of the country's GDP; at this time, tourism generated 264 billion Swedish krona, 98.8 billion of which was foreign-visitor expenditure in Sweden. 7.1% of Swedish household income is spent on domestic tourism. One well-known tourist route is via train from southern to northern Sweden, viewing historical, natural and cultural attractions. This route is particularly popular among German tourists.