COMPARATIVE AGE IN HUMAN YEARS
Dog's Age	0-20 lbs.	21-50 lbs.	51-90 lbs.	>90 lbs.
5 years	36	37	40	42
6 years	40	42	45	49
7 years	44	47	50	56
10 years	56	60	66	78
12 years	64	69	77	93
15 years	76	83	93	115
20 years	96	105	120	-

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