Science examination year
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| 2005 | 236 | 2.18% | |
| 2006 | 257 | 2.37% | |
| 2007 | 279 | 2.58% | |
| 2008 | 336 | 3.10% | |
| 2009 | 334 | 3.09% | |
| Missing | 9382 | 86.68% | |
| Total | 10824 | 100.00% |
NPD Variable
Science examination year
| Value label | Value | Absolute frequency | Relative frequency |
|---|---|---|---|
| 2005 | 236 | 2.18% | |
| 2006 | 257 | 2.37% | |
| 2007 | 279 | 2.58% | |
| 2008 | 336 | 3.10% | |
| 2009 | 334 | 3.09% | |
| Missing | 9382 | 86.68% | |
| Total | 10824 | 100.00% |
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