condition mean min max 0 h after light 1.55323 1.46556 1.6409 4 h after light 3.5106450000000002 2.80492 4.21637 8 h after light 3.0357149999999997 2.47344 3.59799 4 h after dark 1.61272 1.18536 2.04008 8 h after dark 2.3661450000000004 2.3349 2.39739 12 h after dark 1.85097 1.76492 1.93702