condition mean min max 2 h after light 0.1851175 0.109441 0.303013 6 h after light 0.11182501666666667 0.0 0.208739 10 h after light 0.2021251 0.0529543 0.385738 14 h after light 0.24739066666666668 0.152113 0.465349 18 h after light 0.34980833333333333 0.23424 0.539524 2 h after dark 0.19625345 0.0618067 0.340448