The ratio of the age of man and the cat

CAT	HUMAN	CAT	HUMAN
3 years	28/30 years	12 years	68 years
4 years	35 years	13 years	72 years
5 years	38/40 years	14 years	75 years
6 years	43/44 years	15 years	80 years
7 years	48 years	16 years	84 years
8 years	52 years	17 years	88 years
9 years	55 years	18 years	92 years
10 years	60 years	19 years	96 years
11 years	65 years	20 years	100 years