condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.16866833333333334 0.0 1.01201 10 h after light 0.17845833333333336 0.0 1.07075 14 h after light 0.0 0.0 0.0 18 h after light 0.0 0.0 0.0 2 h after dark 0.17556000000000002 0.0 1.05336