Historical Bitcoin prices on Halloween 2013: $200 2014: $340 2015: $314 2016: $700 2017: $6,200 2018: $6,320 2019: $9,170 2020: $13,750 2021: $61,840 2022: $20,620 2023: $34,500 2024: $72,102 2025: $109,604 2026: $77,400 HODL