condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.113232 0.0 0.226464 8 h after dark 0.057253 0.0 0.114506 12 h after dark 0.056315 0.0 0.11263