A financial institution offers a "double-your-money" savings account in which you will have $2 in 10 years for every dollar you invest today. What annual interest rate does this account offer? Please specify your answer in decimal terms and round your answer to the nearest thousandth (e.g., enter 12.3 percent as 0.123).

Please make sure to round properly. The last time I posted this question the answer was not rounded correctly. I think the correct answer is 0.0718, but want to triple-check.