age	fat 		age	fat
23	9.5		52	34.6		
23	26.5		54	42.5		
27	7.8		54	28.8		
27	17.8		56	33.4		
39	31.4		57	30.2		
41	25.9		58	34.1		
47	27.4		58	32.9		
49	27.2		60	41.2		
50	31.2		61	35.7