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Opinions and Lifestyle Survey, Tobacco Consumption and E-Cigarettes Modules, January - February, April - May, July - August and October - November, 2017
Number of cars/vans available to the household - grouped?
Sampling
Multi-stage stratified random sample
Study Type
Repeated cross-sectional study;monthly (up to year 2000), eight cycles per year (up to April 2005), monthly thereafter. From April 2014, reverted back to eight cycles per year.