Bitcoin julaftons pris i historien 2013 $666 2014 $323 2015 455 $ 2016 $899 2017 $13 926 2018 $4 079 2019 $7 323 2020 $23 736 2021 $50 822 2022 USD 16 822 2023 $43 665 2024 $94 120 2025 $87 340