REVEALED: Where to invest in buy-to-let properties

Knight Frank's global survey unveils the global property markets with the highest average rents in 2011
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15. Cape Town, South Africa \n2011 average rent increase/decrease: -14.8 percent
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14. Moscow, Russia \n2011 average rent increase/decrease: -9.8 percent
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13. Manama, Bahrain \n2011 average rent increase/decrease: -6.3 percent
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12. Dubai, UAE \n2011 average rent increase/decrease: -4.9 percent
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11. Zurich, Switzerland \n2011 average rent increase/ decrease: -1.6 percent
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10. Singapore \n2011 average rent increase/decrease: 2.6 percent
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9. New York City, US \n2011 average rent increase/decrease: 2.8 percent
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8. Geneva, Switzerland \n2011 average rent increase/decrease: 2.9 percent
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7. Toronto, Canada \n2011 average rent increase/decrease: 5.3 percent
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6. Hong Kong, PR China \n2011 average rent increase/decrease: 6.6 percent
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5. London, UK \n2011 average rent increase/decrease: 6.7 percent
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4. Guangzhou, PR China \n2011 average rent increase/decrease: 7.2 percent
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3. Shanghai, PR China \n2011 average rent increase/decrease: 8.3 percent
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2. Beijing, PR China \n2011 average rent increase/decrease: 9.2 percent
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1. Nairobi, Kenya \n2011 average rent increase/decrease: 10.0 percent