Throughout 2019 itself, the price of Bitcoin has increased by more than 130%. Although not identical, the same trend also afflicts a number of other digital currencies.
Ethereum for example. Based on data from CoinMarketCap, throughout 2019, its value has also skyrocketed more than doubled from USD 133 on January 1 to USD 269 today. Then, improvements can also be seen in Ripple, Litecoin, and Bitcoin Cash.