condition mean min max 4 h after light 5.059365 4.42564 5.69309 8 h after light 5.366445000000001 5.30295 5.42994 12 h after light 6.2699 5.90176 6.63804 4 h after dark 8.03114 8.01299 8.04929 8 h after dark 6.342625 5.95079 6.73446 12 h after dark 6.90751 6.85229 6.96273