HM Treasury has announced that the National Savings and Investments 65+ Guaranteed Growth Bonds have been bought by more than a million older savers, who made total investments of over £13 billion. These investment figures make the product the best-selling retail financial product in Britain's modern history. The '65+ Guaranteed Growth Bonds' from National Savings and Investments went on sale in January 2015 and offered savers aged 65 and over an opportunity to boost the return on their savings by investing up to £10,000 per bond at fixed annual interest rates of 2.8% for one year bonds and 4% for three year bonds. The Bonds are no longer available to purchase with the investment window closing on 15 May 2015. Internet link: GOV.UK news