The graph gives information about the age of the population of Iceland between 1990 and 2020. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The bar chart presents the percentages of people in five different

age

groups in Iceland from 1990 to 2020.

Overall

,

while

the data for the two younger

age

sets decreased considerably, the adult population from 25 to 54 witnessed an upward tendency and the bracket of citizens over 55 saw the least fluctuations within 30 years. In every decade surveyed, adults aged 25 to 54 accounted for the largest percentage of the Icelandic population. Commencing with just north of 30%, it increased noticeably, reaching approximately half of the population in 2020.

In contrast

, the figures for younger

age

groups showed downward trends. The people who were

at

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between

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the

age

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ages

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of 15 to 24 recorded a sharp decline. It fell roughly from 22% in 1990 to 8% in 2020 and ended up as the smallest

age

bracket. Meanwhile, children aged under 14, despite dropping from around 25% to 18%, remained the second-highest

age

group over the reviewed period. Regarding the elderly categories, in the first ten years, the proportion of 55 to 64 and that of those aged above 65 stood at around 13% and 12%, respectively. Towards the end of the period,

while

the former decreased insignificantly to 10%, the data for the latter stayed nearly constant.