Bitcoin rises 5.5% to $19,897

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(Reuters) - Bitcoin rose 5.54% to $19,897 at 22:13 GMT on Friday, adding $1,044 to its previous close.

Bitcoin, the world's biggest and best-known cryptocurrency, is up 20.6% from the year's low of $16,496 on Jan. 1.

Ether, the coin linked to the ethereum blockchain network, rose 2.98% to $1,458.8 on Friday, adding $42.2 to its previous close.