Survey on Households and the Environment Classification by socioeconomic variables of the selected person Percentage of persons aged 16 years old and over who have participated in activities related to the environment, by type of employment and type of activity Units: % over the total persons ,Have participated in an activity related to the environment,Have collaborated with an organisation alguna organización en in defence of the environment,Have participated in environmental volunteer work,Have signed petitions over situations damaging to the environment,Have demonstrated over situations damaging to the environment,Have personally reported a problem, TOTAL,22.7,5.4,3.4,17.2,7.3,4.3, Works freelance,21.7,6.8,2.8,15.9,6.5,4.7, Only working for others,23.0,5.1,3.6,17.5,7.5,4.3, 1. With permanent contract,23.8,5.5,3.7,18.3,7.8,4.6, 2. With a temporary or determined duration contract,18.5,3.4,3.1,13.1,6.0,2.7, Does not know/ Does not answer,8.9,.,.,4.7,8.9,2.7, Notes: .Data protected by statistical secrecy Source: National Statistics Institute