condition mean min max 2 h after light 0.5925168333333333 0.407699 0.915987 6 h after light 0.3110998333333333 0.164349 0.594135 10 h after light 0.633243 0.206497 1.31087 14 h after light 1.2259998333333333 0.734029 1.60404 18 h after light 1.2761434999999999 0.857772 2.01726 2 h after dark 0.8824663333333334 0.17236 1.67071