题目：The charts below give information about travel to and from the UK, and about the most popular countries for UK residents to visit.
The charts are about how many people travel to and from Britain from 1979 to 1999 and some sought-after countries for UK travelers to visit.
As can be seen from the line chart, over the two decades, the number of UK visitors was always higher than that of people who visit to the UK, although both of the two figures gradually increased. Specifically, the data for visits abroad by UK residents rose from 12 million in 1979 to 20 million in 1986. Similarly, that for visits to the UK by overseas travelers slightly ascended to 12 million in 1986. From this time onwards, the number of UK visitors went up more dramatically than that of overseas residents, finally hitting over 50 million in 1999.
In terms of the bar chart, France was the most popular country that attracted most UK visitors (about 12 million) in 1999. It was followed by Spain (9 million). USA, Greece and Turkey seemed less popular, compared with the former two countries. For example, only 3 million UK residents visited Turkey, nearly three times less than France.
Overall, we can draw a clear conclusion that there is an obvious difference between the number of UK residents visiting to other countries and that of overseas residents visiting to the UK.
