Quality of life Persons aged 16 and over by participation in volunteering activities outside volunteering organisations by income quintile per consumption unit Units: Porcentajes horizontales. SÍ NO Total 5.9 94.1 Primer quintil 4.7 95.3 Segundo quintil 5.2 94.8 Tercer quintil 5.2 94.8 Cuarto quintil 6.6 93.4 Quinto quintil 7.4 92.6 Notes: Source: Instituto Nacional de Estadística