<Tr> <Td> 8 </Td> <Td_colspan="2;"> $11,250 </Td> </Tr> <Tr> <Td> 9 </Td> <Td_colspan="2;"> $7,500 </Td> </Tr> <Tr> <Td> 9 + </Td> <Td_colspan="2;"> $3,375 </Td> </Tr> <Tr> <Th> </Th> <Th_colspan="2"> Waiver compensation for goaltenders, forwards and defensemen on Unconditional Waivers </Th> </Tr>

When did the nhl start the salary cap