condition mean min max 3 h after light 3.23468 2.55339 4.2555 6 h after light 2.64004 1.74293 3.67982 9 h after light 2.9818866666666666 2.62333 3.25901 12 h after light 4.2594 3.6558 4.66302 3 h after dark 3.64346 2.82599 4.06568 6 h after dark 2.287916666666667 2.03133 2.58731 9 h after dark 1.279496 0.985018 1.46118 12 h after dark 1.1687340000000002 0.901862 1.50605