condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.080963 0.0 0.161926 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.154133 0.151272 0.156994 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0