Mumbai is the world's most expensive city

Knight Frank LLP, an international property consultancy, recently conducted a study on how many years worth of earnings would it take for an average citizen to buy a 100-square-metre luxury or a high-end apartment in the world's most important cities. These numbers are according to an analysis of real estate and wages.

So, find out which are the least affordable cities in the world.

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Mumbai

Ranking: 1

Number of years an average citizen would take to buy a luxury apartment: 308.1

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Shanghai

Ranking: 2

Number of years an average citizen would take to buy a luxury apartment: 233.3

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Moscow

Ranking: 3

Number of years an average citizen would take to buy a luxury apartment: 143.7

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London

Ranking: 4

Number of years an average citizen would take to buy a luxury apartment: 136.2

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Hong Kong

Ranking: 5

Number of years an average citizen would take to buy a luxury apartment: 96.4

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Paris

Ranking: 6

Number of years an average citizen would take to buy a luxury apartment: 77.7

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Geneva

Ranking: 7

Number of years an average citizen would take to buy a luxury apartment: 73.5

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Bangkok

Ranking: 8

Number of years an average citizen would take to buy a luxury apartment: 67

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Jakarta

Ranking: 9

Number of years an average citizen would take to buy a luxury apartment: 61.7

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Rome

Ranking: 10

Number of years an average citizen would take to buy a luxury apartment: 60.1

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Sydney

Ranking: 11

Number of years an average citizen would take to buy a luxury apartment: 54.9

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Cape Town

Ranking: 12

Number of years an average citizen would take to buy a luxury apartment: 54.6

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New York (Manhattan)

Ranking: 13

Number of years an average citizen would take to buy a luxury apartment: 48.4

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Singapore

Ranking: 14

Number of years an average citizen would take to buy a luxury apartment: 42.7