<Tr> <Th> Elevation </Th> <Td> 1,645 m (5,397 ft) </Td> </Tr> <Tr> <Th_colspan="2"> Population (2011) </Th> </Tr> <Tr> <Th> Total </Th> <Td> 158,777 </Td> </Tr> <Tr> <Th> Density </Th> <Td> 900 / km (2,300 / sq mi) </Td> </Tr>

What percentage of benoni is set aside for industrial purposes