<Tr> <Td> Portugal </Td> <Td> 173.9 cm (5 ft 8 ⁄ in) </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> 18 (N = m: 696) </Td> <Td> 1.5% </Td> <Td> Measured </Td> <Td> 2008 </Td> <Td> </Td> </Tr> <Tr> <Td> Portugal </Td> <Td> 172.30 cm (5 ft 8 in) </Td> <Td> N / A </Td> <Td> N / A </Td> <Td> 30--34 </Td> <Td> 9.7% </Td> <Td> Estimates </Td> <Td> 1976--1980 </Td> <Td> </Td> </Tr> <Tr> <Td> Portugal </Td> <Td> 171 cm (5 ft 7 ⁄ in) </Td> <Td> 161 cm (5 ft 3 ⁄ in) </Td> <Td> 1.06 </Td> <Td> 20--50 </Td> <Td> 56.7% </Td> <Td> Self - reported </Td> <Td> 2001 </Td> <Td> </Td> </Tr> <Tr> <Td> Portugal </Td> <Td> 173.7 cm (5 ft 8 ⁄ in) </Td> <Td> 163.7 cm (5 ft 4 ⁄ in) </Td> <Td> 1.06 </Td> <Td> 21 (N = m: 87 f: 106, SD = m: 8.2 cm (3 in) f: 5.3 cm (2 in)) </Td> <Td> 1.9% </Td> <Td> Self - reported </Td> <Td> 2001 </Td> <Td> </Td> </Tr>

Whats the normal weight for a 20 year old male