Question 712367
I can tell that you recently had a birthday and are older than 13.
 
Let {{{x}}} be the year you were born (with all four digits for the year).
People born before 2000 are used to naming the year they were born with just 2 digits, as in 93 for 1992. That two-digit number would be
{{{y=x-1990}}} <--> {{{x=1990+y}}}
We are in the year 2013, and today is February 9 where I live.
 
If you were born in January, or early in the month of February (before the 10th),
you recently had a birthday and your age is {{{2013-x}}} or {{{2013-(1990+y)=2013-1990-y=113-y}}}
Then adding your age, and the year you were born you get
{{{(2013-x)+x=2013)}}} or {{{(113-y)+y=113}}}
depending on how you name the year you were born.
 
However, if your birthdat is in late February (like mine), or later yet,
you would count your age as
{{{2012-x}}} or {{{112-y}}}.
In that case, the sum would be
{{{(2012-x)+x=2012}}} or {{{(112-y)+y=112}}}
That is what I get for my sum,
and so would a little over 89.0%={{{325/365}}} of
the people.