condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 1.870165 0.0 3.74033 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 1.67302 0.0 3.34604 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 1.806825 0.0 3.61365 12 h after dark 0.0 0.0 0.0