condition mean min max 2 h after light 1.1232231666666666 0.834831 1.65553 6 h after light 0.9885543333333333 0.677791 1.3552 10 h after light 2.0376408333333336 0.420542 7.1166 14 h after light 1.130524 0.420253 1.92313 18 h after light 0.8573795 0.619162 1.27409 2 h after dark 0.6668155 0.458516 0.783191