Re-order paragraphs

c) People worldwide are living longer.

a) Today most of them can expect to live into their sixties and beyond.

d) By 2030, 1 in 6 people in the world will be aged 60 years or over.

b) At this time the share of the population aged 60 years and over will increase from 1 billion in 2020 to 1.4 billion.

e) By 2050, the world’s population of people aged 60 years and older will double (2.1 billion).