condition mean min max 4 h after light 10.8522175 10.480237 11.224198 8 h after light 9.733605 9.733605 9.733605 12 h after light 9.070384 8.626033 9.514735 4 h after dark 9.601014500000002 9.468424 9.733605 8 h after dark 10.323933 9.973194 10.674672 12 h after dark 9.130514 9.130514 9.130514