condition mean min max 0 h after light 0.695851 0.595836 0.795866 4 h after light 0.265461 0.261094 0.269828 8 h after light 0.2975835 0.202175 0.392992 4 h after dark 0.590922 0.463789 0.718055 8 h after dark 1.0788675 0.723275 1.43446 12 h after dark 0.360753 0.2587 0.462806