condition mean min max 2 h after light 0.5849745000000001 0.28899 0.8116 6 h after light 0.6261163333333334 0.291736 1.20809 10 h after light 0.7077856666666666 0.384226 0.995555 14 h after light 0.8604888333333334 0.226769 1.55254 18 h after light 0.7818045 0.532789 1.35413 2 h after dark 0.703134 0.380652 1.30254