condition mean min max 0 h after light 10.040410000000001 9.21672 10.8641 4 h after light 6.4712250000000004 6.36477 6.57768 8 h after light 6.64155 6.23096 7.05214 4 h after dark 8.334800000000001 7.74282 8.92678 8 h after dark 8.841975 8.10177 9.58218 12 h after dark 9.004815 8.57524 9.43439