condition mean min max 0 h after light 5.086565 4.0413 6.13183 4 h after light 15.793949999999999 14.1596 17.4283 8 h after light 9.498429999999999 7.66296 11.3339 4 h after dark 9.13045 9.06906 9.19184 8 h after dark 8.617360000000001 8.49393 8.74079 12 h after dark 6.111155 3.86754 8.35477