Tourism has grown in Dorset since the late 18th century and is now the predominant industry. It is estimated that 37,500 people work in Dorset's tourism sector. Some 3.2 million British and 326,000 foreign tourists visited the county in 2008, staying a total of 15.1 million nights. In addition there were 14.6 million day visitors. The combined spending of both groups was £1,458 million. Towns received 56% of Dorset's day trippers, 27% went to the coast and 17% to the countryside. A survey carried out in 1997 concluded that the primary reason tourists were drawn to Dorset was the attractiveness of the county's coast and countryside. Numbers of domestic and foreign tourists have fluctuated in recent years due to various factors including security and economic downturn, a trend reflected throughout the UK.