condition mean min max 4 h after light 3.06879 2.5333 3.60428 8 h after light 2.126915 2.09489 2.15894 12 h after light 4.884205 3.98968 5.77873 4 h after dark 6.976453333333334 6.17624 8.36642 8 h after dark 5.596253333333333 3.91478 7.15323 12 h after dark 5.082973333333333 3.67066 6.96308