condition mean min max 0 h after light 1.697285 1.58263 1.81194 4 h after light 2.604495 2.53405 2.67494 8 h after light 1.94007 1.1184 2.76174 4 h after dark 1.670628 0.666146 2.67511 8 h after dark 2.01435 1.55869 2.47001 12 h after dark 3.66891 2.25786 5.07996