condition mean min max 4 h after light 1.24181 1.17331 1.31031 8 h after light 1.5963500000000002 1.42411 1.76859 12 h after light 1.6195249999999999 1.46814 1.77091 4 h after dark 2.3658200000000003 2.29928 2.43236 8 h after dark 1.640385 1.49595 1.78482 12 h after dark 1.41734 1.2273 1.60738