| Beskrywing |
1998 |
1999 |
2000 |
2001 |
2002 |
2003 |
2004 |
2005 |
2006 |
2007 |
| Getal inskrywings |
546 |
499 |
565 |
532 |
525 |
655 |
654 |
627 |
676 |
726 |
| Getal steeds ingeskryf na 1 jaar |
443 |
416 |
485 |
448 |
454 |
544 |
554 |
549 |
594 |
635 |
| Getal steeds ingeskryf na 2 jaar |
416 |
388 |
440 |
413 |
418 |
513 |
526 |
517 |
558 |
- |
| Getal verloor na 1 jaar |
103 |
83 |
80 |
84 |
71 |
111 |
100 |
78 |
82 |
91 |
| Getal verloor na 2 jaar |
130 |
111 |
125 |
119 |
107 |
142 |
128 |
110 |
118 |
- |
| Persentasie verloor na 1 jaar |
18.86 |
16.63 |
14.16 |
15.79 |
13.52 |
16.95 |
15.29 |
12.44 |
12.13 |
12.53 |
| Persentasie verloor na 2 jaar |
23.81 |
22.24 |
22.12 |
22.37 |
20.38 |
21.68 |
19.57 |
17.54 |
17.46 |
- |
Getal verloor in jaar 2 |
27 |
28 |
45 |
35 |
36 |
31 |
28 |
32 |
36 |
- |
| Persentasie verloor in jaar 2 |
4.95 |
5.61 |
7.96 |
6.58 |
6.86 |
4.73 |
4.28 |
5.10 |
5.33 |
- |
| Persentasie behoue na 1 jaar |
81.14 |
83.37 |
85.84 |
84.21 |
86.48 |
83.05 |
84.71 |
87.56 |
87.87 |
87.47 |
| Persentasie behoue na 2 jaar |
76.19 |
77.76 |
77.88 |
77.63 |
79.62 |
78.32 |
80.43 |
82.46 |
82.54 |
- |