From: Variability and seasonality of active transportation in USA: evidence from the 2001 NHTS
Age group | 5-10 years | 11-17 years | 18-64 years | 65+ years | All | |
---|---|---|---|---|---|---|
Percentage (%) | 9.8 (n = 12723) | 11.1 (n = 14442) | 66.9 (n = 87053) | 12.3 (n = 16004) | 100 | |
Sex | Male | 51.8 | 51.3 | 49.2 | 42.6 | 48.9 |
 | Female | 48.2 | 48.7 | 50.8 | 57.4 | 51.1 |
Race/ethnicity | White | 70.9 | 73.9 | 77.1 | 86.2 | 77.3 |
 | Black | 14.3 | 16.6 | 12.5 | 10.5 | 12.9 |
 | Asian | 2.6 | 2.1 | 2.9 | 1.1 | 2.5 |
 | Hispanic | 12.2 | 7.4 | 7.6 | 2.2 | 7.3 |
Household income level | < 20 k | 15.7 | 13.0 | 12.6 | 30.6 | 15.2 |
 | 20-40 k | 23.6 | 21.8 | 23.8 | 36.3 | 25.1 |
 | 40-80 k | 36.9 | 39.0 | 38.0 | 24.4 | 36.4 |
 | > 80 k | 23.9 | 26.2 | 25.5 | 8.6 | 23.4 |
Region | Northeast | 18.1 | 18.9 | 18.7 | 20.7 | 18.9 |
 | Midwest | 24.3 | 24.6 | 23.3 | 24.5 | 23.7 |
 | South | 34.7 | 35.3 | 36.2 | 36.5 | 36.0 |
 | West | 22.9 | 21.2 | 21.9 | 18.2 | 21.5 |
Urbanization level | Rural | 21.8 | 24.0 | 20.5 | 21.6 | 21.1 |
 | Town | 24.1 | 23.2 | 22.3 | 21.3 | 22.4 |
 | Suburban | 23.0 | 24.3 | 24.3 | 22.7 | 24.0 |
 | Second city | 17.4 | 15.8 | 17.7 | 21.0 | 17.9 |
 | Urban | 13.8 | 12.7 | 15.2 | 13.3 | 14.6 |
Month | January | 8.5 | 8.7 | 8.7 | 7.7 | 8.5 |
 | February | 8.0 | 7.3 | 7.8 | 7.2 | 7.7 |
 | March | 9.0 | 9.0 | 8.5 | 8.1 | 8.6 |
 | April | 8.4 | 8.2 | 8.2 | 8.0 | 8.2 |
 | May | 8.2 | 8.8 | 8.1 | 9.4 | 8.4 |
 | June | 8.0 | 8.1 | 8.1 | 8.4 | 8.1 |
 | July | 8.3 | 8.1 | 8.2 | 9.8 | 8.4 |
 | August | 7.8 | 8.0 | 8.4 | 9.7 | 8.5 |
 | September | 8.3 | 8.1 | 8.2 | 8.5 | 8.3 |
 | October | 8.8 | 8.0 | 9.0 | 7.0 | 8.6 |
 | November | 8.0 | 8.5 | 8.2 | 8.1 | 8.2 |
 | December | 8.8 | 9.2 | 8.6 | 8.1 | 8.6 |