condition mean min max 4 h after light 1.969776 0.977318 3.28127 8 h after light 2.672637 0.938941 4.06603 12 h after light 3.08275 1.89253 4.45829 4 h after dark 4.6357 3.94763 5.16426 8 h after dark 3.7718866666666666 3.52198 3.98071 12 h after dark 2.1793966666666664 1.63636 2.45884