Unknown/refused - Total
(Percent)
| Year | Data Set | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|
| Unknown/refused | |||||||
| DC | 2.5 % | 0.3 % | 0.6 % | 0.8 % | 1.1 % | 0.5 % | 0.7 % |
| Year | Data Set | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 |
|---|---|---|---|---|---|---|---|
| Unknown/refused | |||||||
| DC | 2.5 % | 0.3 % | 0.6 % | 0.8 % | 1.1 % | 0.5 % | 0.7 % |