Proportion of US population of 10-19 years old and 70 and older between 1970 and 2030 The bar chart shows data on percentage of citizen in America in types of ages, namely: 10-19 years old, 70 and older from 1970 to 2030 Overall, the rate of people who aged at 10-19 years old decreased in each year, while the figures for 70 and older increased significantly It is also clear that the proportion of American was in population ageing In 1970, the percentage of people at 10-19 years old reached the peak to 10% By contrast, the rate for 70 and older was at the lowest point about 4%.However, it rose slightly by approximately 0,5% in 2000 and there was a slow decline in the total of 10-19 years old by 3% The proportion of US population who aged 70 and older continued increasing after 30 years to 6% in 2030 Otherwise, the figures for 10-19 years old dropped about less than 8% From 1970 to 2030 , it fall roughly 3% , the percentage of 70 and older nearly equal with 10-19 years old Alarmingly, US was in population ageing ( 193 words ) ...The proportion of US population who aged 70 and older continued increasing after 30 years to 6% in 2030 Otherwise, the figures for 10- 19 years old dropped about less... 8% From 1970 to 2030 , it fall roughly 3% , the percentage of 70 and older nearly equal with 10- 19 years old Alarmingly, US was in population ageing ( 193 words )