condition mean min max 4 h after light 0.20922395 0.0705859 0.347862 8 h after light 0.148063 0.027966 0.26816 12 h after light 0.628198 0.619208 0.637188 4 h after dark 1.0162986666666667 0.965856 1.05805 8 h after dark 0.518223 0.477502 0.545774 12 h after dark 0.25794466666666666 0.209561 0.28355