Group | Number of primary CS* (n) | Percentage (%) |
1 | 1723 | 35.9 |
2 | 156 | 3.3 |
3 | 1381 | 28.8 |
4 | 135 | 2.8 |
5 | - | - |
6 | 213 | 4.4 |
7 | 240 | 5 |
8 | 435 | 9.1 |
9 | 70 | 1.5 |
10 | 441 | 9.2 |
Total | 4795 | 100 |