
The world is rapidly ageing. A whopping two billion people will be 60 years and older by 2050, more than triple the number in 2000, according to the World Health Organisation.
This demographic change has major implications for the global economy. Some of the world's biggest economies are facing rising health-care costs, a shrinking workforce, higher pension costs and diminishing fertility rates, according to CNBC.
Let's take a look at some countries facing ageing populations.
Source: CNBC
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Monaco
Old/young ratio: 2.18:1
65 years and over: 26.9 per cent
0-14 years: 2.18 per cent
Global rank: 1
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Japan
Old/young ratio: 1.74:1
65 years and over: 22.9 per cent
0-14 years: 13.1 per cent
Global rank: 2
...

Germany
Old/young ratio: 1.54:1
65 years and over: 20.6 per cent
0-14 years: 13.3 per cent
Global rank: 3
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Italy
Old/young ratio: 1.47:1
65 years and over: 20.3 per cent
0-14 years: 13.8 per cent
Global rank: 4
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Greece
Old/young ratio: 1.38:1
65 years and over: 19.6 per cent
0-14 years: 14.2 per cent
Global rank: 5
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Bulgaria
Old/young ratio: 1.31:1
65 years and over: 18.2 per cent
0-14 years: 13.9 per cent
Global rank: 6
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Austria
Old/young ratio: 1.3:1
65 years and over: 18.2 per cent
0-14 years: 14 per cent
Global rank: 7
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Sweden
Old/young ratio: 1.27:1
65 years and over: 19.7 per cent
0-14 years: 15.4 per cent
Global rank: 8
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Slovenia
Old/young ratio: 1.253:1
65 years and over: 16.8 per cent
0-14 years: 13.4 per cent
Global rank: 9
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Latvia
Old/young ratio: 1.251:1
65 years and over: 16.9 per cent
0-14 years: 13.5 per cent
Global rank: 10