condition mean min max 0 h after light 0.215373 0.0 0.430746 2 h after light 0.0 0.0 0.0 4 h after light 0.1976175 0.0 0.395235 8 h after light 0.231336 0.0 0.462672 12 h after light 1.1759205 0.627481 1.72436 2 h after dark 0.225824 0.0 0.451648 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0