BTC & XRP 2012 to 2018
Lowest prices:
XRP:
2013: $0.002
2014: $0.0036
2015: $0.0042
2016: $0.0051
2017: $0.0061
2018: $0.25
2019 ???
BTC:
2012 - $4
2013 - $65
2014 - $200
2015 - $185
2016 - $365
2017 - $780
2018 - $3200
2019 - ???