Losing money by saving money

if you had to save in something else rather than the dollar which would be the best to save in?

now for example if you saved your money in the US dollar for the last 20 years your purchasing power would have decreased by 50%. check on the link below to check it.

http://www.in2013dollars.com/1997-dollars-in-2016?amount=1

let's look if you saved your money in something else for 20 years.

gold ----------- saving in gold would give you about 3.3 X your amount

silver ----------- saving in silver would give you about 2.3 X your amount

platinum ----------- saving in platinum would give you about 2.6 X your money

copper ----------- saving in copper would give you about 4.3 X your money

bitcoin ----------- saving in Bitcoin @ $0.09 cents to today would give you about 28932 X your money

litecoin ----------- saving in litecoin @ $4.29 to today would give you about 12 X your money

steemit ----------- saving in Steem @ 0.42 cents to today would give you about 4.3 X your money

so saving in anything other than the dollar would be a fantastic idea! thank you for reading.