condition mean min max 3 h after light 2.76803325 0.468887 7.60739 7 h after light 1.6979445 0.371424 4.7094 11 h after light 2.8790921666666667 0.344857 7.33342 2 h after dark 2.81208275 0.870663 6.10645 6 h after dark 2.448816 0.208174 5.86097 10 h after dark 1.9131041666666666 0.151628 6.6883