condition mean min max 4 h after light 63.9222745 58.421667 69.422882 8 h after light 50.9541445 47.303673 54.604616 12 h after light 53.8192895 50.893315 56.745264 4 h after dark 47.217583000000005 43.929229 50.505937 8 h after dark 42.466096 38.453665 46.478527 12 h after dark 49.500202 49.500202 49.500202