condition mean min max 2 h after light 0.02115 0.0 0.0730353 6 h after light 0.024216956666666668 0.0 0.144437 10 h after light 0.16609525 0.0 0.510269 14 h after light 0.23462716666666666 0.0 0.693007 18 h after light 0.17083848333333335 0.0 0.654074 2 h after dark 0.282822666746 0.0 0.982362