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 0.0224599 0.0 0.0449198 4 h after dark 0.02176105 0.0 0.0435221 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0