"Table 3. Opinions on Change in Traffic Congestion, 2006 v. 2007 (percent holding opinion) ",,,,
,Overall ,Moderate to very congested ,Little to no congestion,"95% CI, overall "
2006 Omnibus Household Survey ,n=683 ,n=295 ,n=381 ,n=683 
Better over last 12 months ,10.3,11.6,9.3,± 2.9% 
Stayed about the same ,62.4,46.1,76.6,± 4.5% 
Worse over last 12 months ,27.3,42.4,14.1,± 3.9% 
2007 Omnibus Household Survey ,n=607 ,n=244 ,n=359 ,n=607 
Better over last 12 months ,8.8,5.3,10.4,± 2.9% 
Stayed about the same ,65.4,48.3,77.5,± 4.5% 
Worse over last 12 months ,25.8,46.5,12.0,± 3.9% 
KEY: CI = Confidence interval. ,,,,
NOTE: CIs for subgroups are larger than for the total group. ,,,,
"SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics, Omnibus Household Surveys, November 2006 and 2007. ",,,,