The line graph shows the number of visitors who visited three regions of European countries whole the period. In general, significant increase trends the number of visitors to the coast and mountains showed , while the area of the lakes gives information a fluctuated in the number of visitors in the end of year. On the other hand , the coast had highest the number of visitors between 1987 and 2007 .
Looking at the details, as regard coast the highest the number of visitors 40,000 reported in 1987, it dropped to 35,000 in 1992 . At the same time, it can be seen that the rise of visitors from 1997 to 2007 to 75 thousand people was one of the most amazing things . It differs from other regions in that the mountains grow steadily and without declines . Because in 1987, it had 20,000 tourists, but later it increased to 35,000 people. In other words, coast and mountains recorded almost the highest indicators .
In 1987 , the lakes showed the lowest number of visitors, 19, 000 people. Later by 1997, 40,000 people reached increase, which can be considered an amazing growth. But these indicators suddenly increase and then fall to 45 thousand visitors. It is clear that despite the fact that the lakes have fallen level, it still managed to attract 75,000 tourists.