condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 1.067445 0.0 2.13489 4 h after light 0.310661 0.0 0.621322 8 h after light 0.327301 0.0 0.654602 12 h after light 0.3183065 0.0 0.636613 2 h after dark 0.978845 0.0 1.95769 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0