The graph shows the percentage of UK adolescents following a vegetarian diet. Summarise the information by selecting and reporting the main features.

The line graph demonstrates the proportion of young British people who choose to eat a vegetarian diet from 1960 to 2020.

Overall, the picture shows two key domains of vegetarianism: one peaking around 1980 and the second in 2015 after approximately forty years.

In 1960, only a small percentage of adolescents ( about 1%) were vegetarian. There was a sharp increase within 20 years later to peak at around 15 % in 1980.
Thereafter, it dropped steeply over the next 10 years, followed by a slight fluctuation from nearly 7% in 1990 to 5% in 2000. During this period, the rate of young vegetarians reached the lowest point of just 4% in 1996. Since then, the number of young British people has gradually risen to peak at approximately 10% in 2015 and continuously remained the same between 9% in 2010 and 12 % in 2020.