Year 2019 | Year 2018 | Year 2017 | Year 2016 | Year 2015 | Year 2014 | Year 2013 | Year 2012 | |
---|---|---|---|---|---|---|---|---|

1 | 75.5 | 78.5 | 84.3 | 0 | 0 | 0 | 0 | 0 |

2 | 19.8 | 19.7 | 14.7 | 0 | 0 | 0 | 0 | 0 |

3 | 1.9 | 0.4 | 0.3 | 0 | 0 | 0 | 0 | 0 |

4 | 0.9 | 0.4 | 0.3 | 0 | 0 | 0 | 0 | 0 |

5 | 0.5 | 0.0 | 0.0 | 0 | 0 | 0 | 0 | 0 |

- Never (value when calculating levels: -2.0)
- In some lessons (value when calculating levels: -1.0)
- In about half of lessons (value when calculating levels: 0.0)
- In most of lessons (value when calculating levels: 1.0)
- In almost every lesson (value when calculating levels: 2.0)