Bitcoin closed above $46,300, bringing the Cryptocurrency's year-to-date gains to 58.14%. This growth rate is significantly lower than in previous years. Bitcoin had gained 309% by the end of 2020. At the end of 2019, it had gained 86%, and at the end of 2017, it had gained 1,244%. Bitcoin's comparatively low gains this year of 56.75% make 2021 one of the worst years for Bitcoin in recent history.