condition mean min max 2 h after light 1.7976983333333334 0.0 3.86407 6 h after light 1.989725 0.0 3.31085 10 h after light 2.351096666666667 0.0 4.85326 14 h after light 2.68809 1.50851 5.0266 18 h after light 1.0832943333333334 0.0 1.64572 2 h after dark 0.26193 0.0 1.57158