condition mean min max 0 h after light 0.0769315 0.0577629 0.0961001 4 h after light 0.3673375 0.284248 0.450427 8 h after light 0.2301065 0.136954 0.323259 4 h after dark 0.1229585 0.113259 0.132658 8 h after dark 0.07587685 0.0381777 0.113576 12 h after dark 0.141866 0.095971 0.187761