Strobogrammatic Numbers



A Strobogrammatic number is a number that appears 
the same whether viewed normally or upside down. 
In base 10, given that 0, 1 and 8 are symmetrical around the horizontal axis, 
and 6 and 9 are the same as each other upside down, 
the first few strobogrammatic numbers are:

1, 8, 11, 69, 88, 96, 101,
111, 181, 609, 619, 689, 808,
818, 888, 906, 916, 986, 1001

What years are strobogrammatic?