Demographic group Percentage of drivers with estimates without any edits/imputations Percentage of drivers with missing miles driven Percentage of drivers with missing trip duration
All drivers (n=7,913) 93.9% 3.7% 2.5%
Weekend or weekday
Weekday (5,570) 93.9% 3.8% 2.4%
Weekend (2,343) 93.8% 3.4% 2.9%
Season
Winter Q1: January–March (n=1,480) 93.0% 4.1% 3.1%
Spring Q2: April–June (n=1,718) 94.6% 2.7% 2.6%
Summer Q3: July–September (n=2,333) 94.0% 3.7% 2.4%
Fall Q4: October–December (n=2,382) 93.8% 4.0% 2.2%
Length of driving trip
Drove less than 10 miles (n=1,675) 96.4% 3.2% 0.4%
10 to 20 miles (n=1,894) 93.6% 5.2% 1.3%
Drove more than 20 miles (n=4,343) 88.0% 6.2% 6.0%
Frequency of driving
Drive almost every day (n=6,335) 93.2% 3.9% 2.9%
Drive sometimes (n=1,114) 96.1% 3.1% 0.9%
Rarely drives (n=464) 97.4% 1.7% 0.4%
Census region
Northeast (n=1487) 94.7% 3.6% 1.7%
Midwest (n=1,862) 94.3% 3.3% 2.5%
South (n=3,068) 93.4% 3.7% 3.0%
West (n=1,496) 93.5% 4.2% 2.3%