condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.0381115 0.0 0.152446 3 h after dark 0.0821312 0.0 0.15126 6 h after dark 0.0992709 0.0541077 0.130673 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0853303 0.0583166 0.112344