While its true it traded at 7 dollars, it was paying a dividend of 2.00 per year, before the government messed with FNMA. So, 2 dollars per year, times 12 years = 24 plus 7 equals 31 dollars.
There is also interest on the 31 dollars for 12 years. At a modest six percent per year, for 12 years. it would double, to 62.00
Either way, its about 60 dollars.