Table:
highest certificate, diploma or degree
female lone parents
female parent in couples

1991
2001
2011
difference
1991
2001
2011
difference

percent

total
100
100
100
..
100
100
100
..

no certificate, diploma or degree
34
20
13
-21
24
13
8
-16

high school diploma or equivalency
30
28
25
-5
32
28
21
-11

postsecondary certificate below the bachelor's level
26
39
42
16
29
36
38
9

university degree at the bachelor's level or above
9
13
20
11
15
23
33
18

Analyze the provided table and identify the locations of these cells:
(1) '25';
(2) '-11';
Provide the cell locations using the JSON format {'value': '<cell value>', 'location': (row index, column index)}, where row and column indices start from 1. If a cell does not exist in the table, denote its location as 'DOES NOT EXIST'.

The target cell locations are as follows:
(1) {'value': '25', 'location': (6, 4)}
(2) {'value': '-11', 'location': (6, 9)}