compared to last year bitcoin prices are very low at the beginning of the year and by the end of 2017 bitcoin has increased very high. whereas at the beginning of this year bitcoin has declined in price but if compared to bitcoin prices at the beginning of last year with bitcoin prices at the beginning of this year is very different, higher bitcoin prices earlier this year than at the beginning of last year. I think the bitcoin price at the end of this year will be higher than the bitcoin price at the end of last year.