Out of 57 cats total we have:

3 months) 1 (Basil the baby of them all )
4 months) 2 (Patches and Ozzie )
4 1/2 months) 1 (Charlie )
1 yr)14 cats! the most popular!
2 yrs)7 cats
3 yrs)4 cats
4 yrs)4 cats
5 yrs)3 cats
6 yrs)8 cats 2nd most popular
7 yrs)1 cat
8 yrs) 0!
9 yrs)2 cats
10 yrs)1 cat
11 yrs)1 cat
12 yrs)1 cat
13 yrs)2 cats
14 yrs)3 cats
15 yrs)1 cat
16 yrs)1 cat Tubby!
And honorable mention to Duffy who was 17 last Dec.(Rainbow Bridge)