condition mean min max 4 h after light 4.1511700000000005 3.79097 4.51137 8 h after light 4.282835 4.05389 4.51178 12 h after light 6.184704999999999 6.15201 6.2174 4 h after dark 9.303004999999999 8.51011 10.0959 8 h after dark 7.32724 7.31402 7.34046 12 h after dark 6.202395 6.06369 6.3411