"Table 3 Descriptive Statistics
",,,,,,,
Variables,Mean,Median,Maximum,Minimum,Std. dev.,Observations,
Daily traffic volume,"11,490","9,460","63,741","1,689","8,821","1,135",
Toll (euros per km)1,0.091,0.086,0.224,0.037,0.035,"1,135",
Gasoline price (euros per liter)1,0.619,0.533,0.867,0.486,0.139,18,
GDP (millions of euros)1,"219,311","230,277","275,869","174,149","33,619",18,
Section length (kms),14.7,13.9,43.0,2.0,8.2,72.0,
1 The base year for variables expressed in monetary units is 1992.,,,,,,,