condition mean min max 4 h after light 2.6535450000000003 2.559 2.74809 8 h after light 3.5018599999999998 3.42539 3.57833 12 h after light 3.70377 3.49599 3.91155 4 h after dark 4.416024999999999 3.95054 4.88151 8 h after dark 2.891775 2.83338 2.95017 12 h after dark 2.875705 2.61245 3.13896