12 months, we found it on 12/2/14, previous find 12/21/13 

"D" es para Dividiendo Docenas

9 months, we found it on 9/30/14, previously found on 12/21/13

"E" is for Exclamation

7 months, we found it on 9/22/14, previous find 2/7/14 (when we found it, david & britt had only logged a note not a find).

8 months, we found it 9/15/14, previous find 1/11/14

11 months, we found it on 9/8/14, previous find 10/26/13

5 months, we found it on 7/9/14, previous find 2/6/14

4 months, we found it on 12/15/13, previous find 8/6/13

3 months, we found it on 9/4/14, previous find 6/5/14

10 months, we found it on 7/26/14, previous find 9/7/13

1 month, we found it on 9/3/14, previous find 8/31/14

6 months, we found it on 9/30/14, previous find 3/17/14

2 months, we found it on 9/15/13, previous find 7/30/13

Find 12 puzzle caches that have not been found in 1 mo, 2 mos, 3 mos... etc up to 12 mos