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