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 3.389345 0.0 6.77869 2 h after dark 0.0 0.0 0.0 4 h after dark 2.961765 0.0 5.92353 8 h after dark 3.33971 0.0 6.67942 12 h after dark 0.0 0.0 0.0