condition mean min max 0 h after light 5.953530000000001 4.89569 7.01137 4 h after light 5.25828 5.17148 5.34508 8 h after light 6.48991 5.61359 7.36623 4 h after dark 6.944794999999999 6.53403 7.35556 8 h after dark 5.905844999999999 5.38118 6.43051 12 h after dark 5.606680000000001 5.18923 6.02413