比特幣在八月的平均回報率: 2010:-11.6% 2011:-38.6% 2012:+8.7% 2013:+30.9% 2014:-18.3% 2015:-19.1% 2016:-7.7% 2017:+64.2% 2018:-9.2% 2019:-4.6% 2020:+2.7% 2021:+13.6% 2022:-13.9% 2023:-11.3% 2024:-8.7% 2025:-6.5% 2026:+1.1%…… 本月預期不大。