Value | Category |
---|---|
1 | Months 1 |
2 | Months 2 |
3 | Months 3 |
4 | Months 4 |
5 | Months 5 |
6 | Months 6 |
7 | Months 7 |
8 | Months 8 |
9 | Months 9 |
10 | Months 10 |
11 | Months 11 |
12 | Months 12 |
13 | Months 13 |
14 | Months 14 |
15 | Months 15 |
16 | Months 16 |
17 | Months 17 |
18 | Months 18 |
19 | Months 19 |
20 | Months 20 |
98 | Don't know |