My best guess is 30 because your username has 81 as the last two letters which suggests that you were born in 1981. Given that it's 2012 you would be turning 31 this year but because we are not half way through the year yet, chances are that you haven't had your birthday and you are 30.
1,2,3,4,5,6?7?8?9?10?11?12?13?14?15?16?17?18?19?20?21?22?23?24?25?26?27?28?29?30?31?32?33?34?35?36?37?38?39..............….........
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