condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0692495 0.0 0.138499 4 h after dark 0.0 0.0 0.0 8 h after dark 0.03479295 0.0 0.0695859 12 h after dark 0.0 0.0 0.0