Remove grammatical mistakes: In the recent years, along with the decline in birth rate, the proportion of the aged in our population has also increased.
The population of the,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The number of people aged 15-24 years old is expected to increase by 1.5% in 2019, which is 1.5% of the total population.
The number of people aged 25-34 years old is expected to increase by 1.5% in the same year.
The number of people aged 35-44 years old is expected to increase by 1.5% in the same year.