user
Instruction
Answer the question based on the provided table.


Table
Table Title: participation, employment and unemployment rates of people aged 25 to 54 by aboriginal group and marital status, 2015
Table Content:
<table border="1" cellspacing="0">
<tr> <td rowspan="2">  </td> <td>  </td> <td> single or previously married </td> <td> difference </td> </tr>
<tr> <td colspan="2"> percent </td> <td> percentage points </td> </tr>
<tr> <td> participation rate </td> <td colspan="3">  </td> </tr>
<tr> <td> aboriginal population </td> <td> 81.9 </td> <td> 68.2 </td> <td> 13.7 </td> </tr>
<tr> <td> non-aboriginal population </td> <td> 88.1 </td> <td> 83.7 </td> <td> 4.4 </td> </tr>
<tr> <td>  </td> <td> -6.2 </td> <td> -15.5 </td> <td> .. </td> </tr>
<tr> <td> employment rate </td> <td colspan="3">  </td> </tr>
<tr> <td> aboriginal population </td> <td> 75.1 </td> <td> 57.8 </td> <td> 17.3 </td> </tr>
<tr> <td> non-aboriginal population </td> <td> 84.0 </td> <td> 76.9 </td> <td> 7.1 </td> </tr>
<tr> <td>  </td> <td> -8.9 </td> <td> -19.1 </td> <td> .. </td> </tr>
<tr> <td> unemployment rate </td> <td colspan="3">  </td> </tr>
<tr> <td> aboriginal population </td> <td> 8.3 </td> <td> 15.2 </td> <td> -6.9 </td> </tr>
<tr> <td> non-aboriginal population </td> <td> 4.6 </td> <td> 8.2 </td> <td> -3.6 </td> </tr>
<tr> <td>  </td> <td> 3.7 </td> <td> 7.0 </td> <td> .. </td> </tr>
</table>


Question
using employment rates as an example, what was the percent of aboriginal people in couples were employed in 2015?


Answer Format
The final answer should be concise and use the following format:
```json
{
    "answer": [
        "answer1",
        "answer2",
        ...
    ]
}
```
rule
["75.1"]