condition mean min max 0 h after light 21.15085 16.6705 25.6312 2 h after light 10.66205 10.597 10.7271 4 h after light 8.192245 8.19032 8.19417 8 h after light 5.82208 5.67684 5.96732 12 h after light 9.15457 9.00294 9.3062 2 h after dark 7.991185 7.96748 8.01489 4 h after dark 10.19305 10.0282 10.3579 8 h after dark 19.15355 17.6862 20.6209 12 h after dark 18.781100000000002 16.3677 21.1945