condition mean min max 4 h after light 0.2894353 0.0925689 0.613351 8 h after light 0.650481 0.232032 0.960051 12 h after light 0.25505733333333336 0.159192 0.416682 4 h after dark 0.31094333333333335 0.104428 0.651304 8 h after dark 0.361717 0.348793 0.387262 12 h after dark 0.2171781 0.0391163 0.367051