condition mean min max 4 h after light 8.24578 5.04012 11.7042 8 h after light 7.78295 2.31365 13.3273 12 h after light 8.117673333333332 4.52305 12.8748 4 h after dark 10.247253333333333 6.28566 13.4294 8 h after dark 6.99193 4.44628 9.16343 12 h after dark 6.167636666666667 5.24286 7.97091