Depends where you live. The pound crashed 6% last week in a matter of minutes, and is down 8% this month and 17% this year. The Swiss franc jumped 40% against the euro in a matter of minutes in 2015. The ruble crashed 45% over 6 months in 2014. Icelandic kronor crashed 35% vs the dollar in 2008. Venezuela is in hyperinflation right now.