condition mean min max 4 h after light 0.00646435 0.0 0.0129287 8 h after light 0.0134836 0.0 0.0269672 12 h after light 0.00356796 0.0 0.00713592 4 h after dark 0.0 0.0 0.0 8 h after dark 0.008002366666666667 0.0 0.0240071 12 h after dark 0.0 0.0 0.0