The chart below gives information on the percentage of British people giving money to charity by age range for the years 1990 and 2010 Summarize the information by the selecting and reporting the main features and make comparisons where relevant

The graph illustrates the proportion of charity money giving by British people aged from 18 to over 65 during the period 1990 to 2010. It is noticeable that the 36-50 age group has the highest contribution overall while the opposite was true for the 18-25 age group.
In 1990, the percentage of charity money donated by the 36-50 age group reach a peak of 42% compared to the lowest figure for the 18-25 age group, with 17%. The figure of people aged under 35, between 51 to 65 and over 65 was 32%, 35% and 34% respectively.
Over the next 20 years, the figure for people under 25 witnessed a significant decline of 10%. The percentage of 26-35 people and under 50 was lower than 1990, with respective figures being 23% and 35%. In contrast, the donation of people under 65 and over 65 increased slightly to 39% and 35% correspondingly.