In 1989/ the highest/ the number of visitors/ was/ who travelled to the coast/ at 40,000.
In 1989, the number of visitors who travelled to the coast was the highest, at 40,000.
the number of/ In 1989/ was higher than/ people travelling to the mountains/ that of the lakes/ at 20,000 and 10,000 respectively.
In 1989, the number of people travelling to the mountains was higher than that of the lakes, at 20,000 and 10,000 respectively.
10 years later/ However,/ increased significantly to 40,000/ while/ there was a slight rise/ the number of overseas visitors to the lakes/ in the number of visitors going to the mountains/ at 30,000.
However, 10 years later, the number of visitors to the lakes increased significantly to 40,000 while there was a slight rise in the number of visitors going ...