South Korea's consumer confidence index jumped to 98 in April from 84 in March, the Bank of Korea said Tuesday. This was the biggest gain in the index since the central bank started releasing the monthly series in July 2008 and also since the series began in the first quarter of 2005.

The rise in consumer confidence was mainly due to an improvement in most of the economic indicators.

A reading below 100 indicates that pessimists outnumber the optimists.

The survey was conducted by the Bank of Korea among 2,200 households in 56 major cities from April 14 to 21.

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