condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.005648 0.0 0.011296 12 h after light 0.0 0.0 0.0 4 h after dark 0.00602915 0.0 0.0120583 8 h after dark 0.0150537 0.0119791 0.0181283 12 h after dark 0.01095785 0.0100176 0.0118981