The charts illustrate the distribution of residents across three age groups in Oman and Spain in 2005, along with predictions for 2055.
Overall, individuals aged 60 and above have constituted the largest proportion in 2005 in both countries, with a significant increase projected for Oman and a considerable decrease expected for Spain by 2055.
In 2005, Oman exhibited the smallest share, at 4%, among inhabitants aged 15-59, with much larger proportions in the other two age groups, each around 48%. However, forecasts for 2055 predict substantial growth of 57% among the eldest residents, a notable decline of the youngest to just above one-third (37%), and a slight increase to 6% for the remaining category. These trends indicate a shift towards an older population in Oman.
On the other hand, Spain represented a distinctive age distribution: about two-thirds of the population was aged 60 years and over, with around a quarter in the 15-59 bracket, leaving approximately 14% for those under 14 years old, roughly a quarter of the largest group. The projected figures for 2055 indicate a decline to 46% in the eldest bracket and an almost doubling to 42% within those aged from 15 to 59 years. The 0-14 years old is estimated to slightly reduce to 12%. These tendencies suggest a movement towards a younger demographic in Spain.