I am renewing my residence visa, i do not want to carry too much money around with me, but then again, i dont want to get there and find that i haven't got enough, so at 2008 prices, what do 4yr and 5yr visas actually cost, i have have searched and found what i think is the cost, 48mth 2042ytl, but then it goes uo to 61mth, why?