Survey on Homeless Persons Relative sampling errors Sampling errors relating to the homeless population by nationality and age group Units: percentages Total 18 to 29 years 30 to 44 years 45 to 64 years More than 64 years Total 2.25 5.29 4.48 4.76 14.66 Spanish 3.73 17.03 6.51 5.64 10.64 Foreign 3.51 7.30 6.47 9.53 34.85 Notes: Source: National Statistics Institute