condition mean min max 4 h after light 0.8255375 0.783024 0.868051 8 h after light 0.8006265 0.642216 0.959037 12 h after light 1.2389715 0.976073 1.50187 4 h after dark 3.5875649999999997 3.01183 4.1633 8 h after dark 1.855295 1.74432 1.96627 12 h after dark 1.62491 1.01016 2.23966