Back in mid-December, Bitcoin peaked with a value of over $19,000 per coin. Then just a few days later, it dropped to below $14,000. After that it went back up a little bit, then fell to below $13,000 by the end of the month. In the first week of January, Bitcoin’s value was back up to over $17,000. It has been steadily declining ever since,

Source: Hot Hardware – Bitcoin Plunges Below ,000 As Cryptocurrency Rollercoaster Ride Gets Bumpy