condition mean min max 2 h after light 2.297842166666667 0.0 6.14935 6 h after light 0.2147225 0.0 0.834041 10 h after light 1.9437041666666666 0.0 5.7071 14 h after light 1.2773235 0.0 2.10327 18 h after light 0.8292515 0.0 1.29318 2 h after dark 0.9566603333333333 0.0 2.38546