condition mean min max 0 h after light 1.290505 1.0829 1.49811 4 h after light 1.578745 1.42358 1.73391 8 h after light 1.5489549999999999 1.3123 1.78561 4 h after dark 2.6385500000000004 2.54226 2.73484 8 h after dark 2.29397 2.0486 2.53934 12 h after dark 1.576235 1.33894 1.81353