From January to December 2017, the value of BTC rose 1500% - the largest one-year increase in history.
As Bitcoin gained value and legitimacy, trading volumes increased, and hundreds of new crypto coins were issued.
In 2018, however, 751 crypto coins became defunct - the most casualties of any year.
Of those, 390 failed due to lack of trade volume and 237 due to issues with fraud.
In order -- Lack of trade volume (66%), Scam (22%), ICO fail (10%) and Joke or no purpose (1%).
See the full infographic.