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The breakdown of our purposive and mathematical context categories for each year, and the proportion of both of these.
| year | no. labellings | purposive (%) | maths (%) | explanandum (%) | explanans (%) |
|---|---|---|---|---|---|
| 2009 | 180 | 27 | 73 | 51 | 49 |
| 2010 | 47 | 26 | 74 | 49 | 51 |
| 2011 | 136 | 18 | 82 | 52 | 48 |
| 2012 | 122 | 20 | 80 | 52 | 48 |
| total | 485 | 23 | 77 | 51 | 49 |
