| Value | Category | Cases | |
|---|---|---|---|
| 0 | 3 |
0.1%
|
|
| 9 | 1 |
0%
|
|
| 1992 | 1 |
0%
|
|
| 1998 | 1 |
0%
|
|
| 2000 | 4 |
0.2%
|
|
| 2001 | 1 |
0%
|
|
| 2002 | 30 |
1.3%
|
|
| 2003 | 2160 |
93.7%
|
|
| 7777 | NZ | 23 |
1%
|
| 8888 | BO | 81 |
3.5%
|
| Sysmiss | 7424 |