condition mean min max 0 h after light 8.853755 7.27871 10.4288 4 h after light 5.717784999999999 5.26052 6.17505 8 h after light 4.671950000000001 4.6054 4.7385 4 h after dark 5.718935 4.4279 7.00997 8 h after dark 5.73343 5.63193 5.83493 12 h after dark 7.7934 6.03575 9.55105