condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.3070053333333333 0.0 0.921016 9 h after light 0.0 0.0 0.0 12 h after light 0.21123425 0.0 0.844937 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0