condition mean min max 2 h after light 1.3481400000000001 1.24703 1.4353 6 h after light 1.5838333333333334 1.39134 1.70508 10 h after light 1.63826 1.52153 1.75311 2 h after dark 1.44747 1.26572 1.64033 6 h after dark 1.8787233333333333 1.75822 2.00586 10 h after dark 1.9590033333333334 1.58939 2.27396