Survey on Households and the Environment 
Classification by characteristics of the reference person
Percentage of dwellings whose residents use specific products, by level of studies completed by the reference person and frequency of use
Units: %  over the total number of dwellings

;Use throwaway products;Use throwaway products fairly often;Use recycled paper;Use recycled paper fairly often;Use returnable containers;Use returnable containers fairly often;Use rechargable batteries;Use rechargable batteries fairly often;
TOTAL;89.5;57.2;33.4;13.5;27.8;12.6;50.5;29.5;
Without studies;79.9;43.2;14.1;4.8;20.8;8.6;22.1;9.1;
Primary education or the equivalent;89.1;53.7;27.4;9.8;25.7;10.3;41.6;21.0;
Stage one secondary education;92.2;65.0;31.1;11.6;26.2;12.4;53.9;33.6;
Upper-secondary education;91.6;60.3;41.5;17.2;32.6;15.9;59.2;35.1;
Intermediate level-professional education;92.4;63.3;43.1;19.2;33.3;15.1;66.9;41.4;
Higher level -professional education;93.1;62.7;40.9;15.1;32.8;15.6;69.0;43.8;
1st cycle university studies;92.1;63.1;44.2;19.7;29.0;14.9;63.1;41.4;
2nd or 3rd cycle university studies;93.1;62.9;52.9;25.0;32.5;16.6;72.1;48.0;
Does not know/ Does not answer;100.0;74.8;27.9;27.9;27.9;27.9;96.7;96.7;
Notes:
Source: National Statistics Institute