condition mean min max 4 h after light 0.847364 0.564502 1.20557 8 h after light 1.143595 0.335185 1.87913 12 h after light 1.0422396666666667 0.264279 1.71557 4 h after dark 1.5581836666666666 0.675021 2.84644 8 h after dark 0.6348823333333333 0.374925 1.11134 12 h after dark 0.7388089999999999 0.704257 0.797777