The line graph illustrates the original and assumed number of tourists to two countries (Cardiff and Dublin) produced from 2018 to 2040.
It is clear that there are lots of dramatic increases and decreases happening in both countries in 22 years. In some years people like to visit Cardiff where the tourism rate will be high and in other years it will be less than in previous years.
The visitors visited Dublin more than Cardiff in 2018. It gradually increased slowly in Cardiff, year by year, and went to the peak in 2040. 7 million tourists visited Dublin in 2018 and the scenario changed in 2028 with 2 million visitors, again it started to rise to 6 billion in 2030, a dramatic drop in 2034 with 2.5 million people.
It clearly shows that tourism will increase in Cardiff by 2040 and it will drop down in Dublin were recently it was higher than Cardiff.