S/N | YEARS | FREQUENCY | PERCENTAGE |
1 | 0 - 5 | 5 | 11.1% |
2 | 6 - 10 | 13 | 28.9% |
3 | 11 - 15 | 24 | 53.3% |
4 | 16 - 20 | 1 | 2.2% |
5 | ABOVE 20 | 2 | 4.4% |