|Read the passage given below and answer the questions that follow :|
|Chocolate diamonds are actually brown diamonds and compared to the well-known white diamond they aren't much worth. Diamonds are produced in mines. The best known diamond mines are in Australia, South Africa and Russia. The largest diamond mine discovered in 1976 in the desert of Australia near a little creek named Lake Argyle. Diamonds are created under very extreme conditions of pressure and high temperature. It is a general misunderstanding that there exist only white colourless diamonds. Actually, diamonds exist in many different colours.|
|Of all the diamond mines in the world, almost 80% of all diamonds produced are brownish in colour. Because they were found in such large quantities compared to the other coloured diamonds, they were considered as low valued diamonds, only good for the industrial sector. But, a famous man called Le Vian came with a marketing campaign to increase the popularity of the chocolate diamond. Instead of calling it a brown diamond, he gave it popular names like caramel, chocolate, cinnamon and cognac. Because of his marketing campaign, chocolate diamonds are becoming very popular.|
|The value of a diamond is based on its shape, brightness and colour. Because white diamonds are rare, their value is based on the fact that there are not many white diamonds around. But if you look at the shape and brightness, then the brightest diamond in this world known to men is a brown diamond.|
|(h) The percentage of brownish diamonds is...........|
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