Housing conditions and energy efficiency Households by burden of housing costs (mortgage or rent, heating, electricity, etc.) by number of recipients. Unidades: Horizontal percentages. A heavy burden A reasonable burden No burden Not specified Total 36,2 58 5,6 0,3 1 recipient 35,5 56,8 7,3 0,4 2 recipients 34,9 60,6 4,3 0,2 3 recipients or more 39,6 55,9 4,3 0,2 Not classifiable 47,3 43 9,4 0,3 Notas: A recipient is defined as a household member who has an annual personal income of more than 1,000 euros. Personal income includes income from employment, profits/losses from self-employment, social benefits and income from private pension schemes. 2) Number of recipients: Not classifiable includes households where there is no personal income earner (or where the personal income does not exceed 1,000 euros per year). Fuente: Instituto Nacional de Estadística