condition mean min max 0 h after light 2.563355 2.56107 2.56564 4 h after light 1.822675 1.60587 2.03948 8 h after light 1.922865 1.60431 2.24142 4 h after dark 1.696045 1.55399 1.8381 8 h after dark 1.5579299999999998 1.36963 1.74623 12 h after dark 1.3130000000000002 1.27881 1.34719