Fix the grammatical mistakes: By 2030, it will be about 18% and this is a consequence of a rapidly ageing population.
The population of, the, the, the, the,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,
The 2019-2020 census will be conducted in 2021.
The 2019-2020 census will be conducted in 2021.
The 2020-2021 census will be conducted in 2021.
The 2021-2022 census will be conducted in 2022.
The 2022-2