Survey on Equipment and Use of Information and Communication Technologies in Households 
Sampling errors
Standard errors related to ICT use by persons by Autonomous City and Community and main ICT uses
Units: Percentages

,Persons who have used a computer in the last 3 months,Persons who have used the Internet at least once a week in the last 3 months,Persons who have purchased via the Internet in the last 3 months,
National Total,0.45,0.49,0.46,
Andalucía,1.01,1.10,0.91,
Aragón,1.77,1.87,1.95,
Asturias, Principado de,1.36,1.54,1.54,
Balears, Illes,2.32,2.50,2.18,
Canarias,2.58,2.97,2.01,
Cantabria,2.45,2.63,2.56,
Castilla y León,1.53,1.72,1.60,
Castilla-La Mancha,1.93,2.14,1.52,
Cataluña,1.32,1.43,1.56,
Comunitat Valenciana,1.55,1.62,1.42,
Extremadura,2.08,2.32,1.90,
Galicia,1.91,2.08,1.81,
Madrid, Comunidad de,1.41,1.56,1.66,
Murcia, Región de,2.34,2.38,2.05,
Navarra (Comunidad Foral de),1.19,1.34,1.34,
País Vasco,1.53,1.75,1.62,
Rioja, La,2.09,2.67,1.95,
Ceuta and Melilla,5.87,5.79,4.26,
Notes:
1) Standard error: Estimation of the standard deviation of the estimator  of a certain caracteristic, expressed in percentage. 
  
 Results obtained from persons aged 16 to 74 years
Source: National Statistics Institute