These two graphs depict the number of people who became Uk citizens from 1962 to 2002 and the origin of immigrants to the UK in the same time.
In the first chart, the number of people who removed to Bristish rose annually from ( 20000 to 110000 in 1962 and 2002 respectively) and steadily increased 60000 settlers in the last ten years which is double rising to all the previous decades. Whereas, there was a slightly decrease in the number of people from 1972 to 1982. For instance , that number dropped from 35000 people in 1972 to 30000 people in 1982.
To interpret this abnormal rising in the last decade , let look at the second chart. More and more people from Asia , Africa and Europe migrated to UK every year. For example , the number of Asian moved to Bristish rised nearly 10000 over five decades while UK witnessed the triple increase in the number of people from Afica and Europe starting at 9000 people in each country. In contrast , there was a small decrease in the number of American , Australian and so on.