condition mean min max 4 h after light 1.4277233333333332 1.12809 1.82296 8 h after light 2.151265 0.520125 4.22225 12 h after light 3.2466633333333332 1.96191 4.53006 4 h after dark 4.80559 3.58038 5.61632 8 h after dark 3.59225 2.69886 5.04357 12 h after dark 2.0917700000000004 1.92216 2.36073