How old are Dr Dre's kids?

Dre dr's eldest son he had when he was 17 is 29 probably close to 30 he had his second son in 1988 he is 22 then his third son in 1991 is 19 going on twenty then his youngest child with his current wife Nicole are 14 and his daughter in about 10. for the most part all of his kids are grown!