condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.07801625 0.0 0.164237 3 h after dark 0.060401 0.0 0.181203 6 h after dark 0.11236666666666666 0.0 0.180552 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0