People 10 years of age or older
| 2005 | 2011 | |
|---|---|---|
| Maranhão | 21.62 | 30.71 |
| Piauí | 27.46 | 28.37 |
| Espírito Santo | 26.73 | 24.34 |
| Distrito Federal | 24.39 | 23.38 |
| Rondônia | 21.25 | 22.29 |
| Rio Grande do Sul | 24.27 | 21.53 |
| Santa Catarina | 29.15 | 20.35 |
| Paraíba | 21.18 | 20.20 |
| Acre | 20.60 | 18.99 |
| Ceará | 20.40 | 18.76 |
| Rio Grande do Norte | 19.85 | 18.70 |
| Paraná | 17.81 | 17.94 |
| Bahia | 15.60 | 17.56 |
| São Paulo | 18.46 | 17.15 |
| Mato Grosso | 14.00 | 16.39 |
| Amapá | 14.70 | 14.92 |
| Mato Grosso do Sul | 13.25 | 14.63 |
| Minas Gerais | 14.92 | 14.56 |
| Pará | 14.98 | 14.37 |
| Roraima | 15.48 | 12.98 |
| Pernambuco | 18.45 | 12.83 |
| Rio de Janeiro | 15.73 | 12.36 |
| Amazonas | 12.31 | 12.33 |
| Alagoas | 12.76 | 12.03 |
| Sergipe | 14.30 | 11.29 |
| Tocantins | 9.67 | 10.68 |
| Goiás | 13.69 | 9.90 |