condition mean min max 2 h after light 0.1681515 0.0 0.28164 6 h after light 0.14886201666666665 0.0943651 0.227718 10 h after light 0.25373466666666666 0.0 0.634242 14 h after light 0.414616 0.233874 0.663005 18 h after light 0.14569616666666665 0.0 0.261287 2 h after dark 0.391952 0.131412 0.540829