condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.21818316666666665 0.0 0.740991 14 h after light 0.068395 0.0 0.41037 18 h after light 0.0 0.0 0.0 2 h after dark 0.07915266666666666 0.0 0.474916