condition mean min max 4 h after light 220.866658 198.045767 243.687549 8 h after light 199.8712775 145.648194 254.094361 12 h after light 131.6392935 126.661915 136.616672 4 h after dark 84.1256585 55.855436 112.395881 8 h after dark 79.6955285 43.361206 116.029851 12 h after dark 197.155134 197.155134 197.155134