condition mean min max 4 h after light 2.8669146666666667 2.705172 3.1181900000000002 8 h after light 2.087816 1.49389 2.4167490000000003 12 h after light 3.4588573333333335 2.499791 4.479233 16 h after light 9.547081666666667 2.841675 22.00234 4 h after dark 3.2107246666666662 2.1406959999999997 4.978857 8 h after dark 2.17213 1.4948540000000001 3.4974769999999995