What is the ideal weight for a 22-year-old who is 5'8?

For female 122-165 is good. For male it would be 135-182 lbs. A small framed, low muscle man-132 lbs medium framed average muscle content man-157 large framed muscular man-178 lbs for woman of same descriptions- 127,145,160 130. Think Rihanna and Blake Lively.