condition mean min max 0 h after light 2.278895 1.54907 3.00872 2 h after light 1.945385 1.83465 2.05612 4 h after light 1.63567 1.41051 1.86083 8 h after light 3.167325 2.43173 3.90292 12 h after light 4.44354 3.81012 5.07696 2 h after dark 4.29829 3.0749 5.52168 4 h after dark 4.628495 3.64615 5.61084 8 h after dark 5.930295 5.53376 6.32683 12 h after dark 2.449335 1.67564 3.22303