"When You're # 1, You Can Do Things Others Can't" - Source: 2006 Ad Tracking Study. This survey included 1202 telephone interviews (via computer assisted program) with a national random sample of adults (ages 25-54) who have either bought or sold a home within the past two years or plan to purchase or sell a home within the next two years. Brand awareness questions are based on a sample size of 1202 respondents with a margin of error of +/- 2.4% at 90% confidence level. The study was conducted between March 6th-October 2nd, 206 by Millward Brown, a leading research organization.