$BTC 2011-2013: It reached $1 for the first time in 2011, jumped to $31, then crashed. By 2013, it broke the $1000 barrier.

2014-2017: Sharp fluctuations, followed by a strong rise in 2017 to reach $20,000 by the end of the year.

2018-2020: A significant decline, followed by a slow recovery.