condition mean min max 3 h after light 1.9687643333333333 0.567293 2.89683 6 h after light 0.780959 0.201668 1.7662 9 h after light 2.0774893333333333 0.199768 4.707 12 h after light 1.2049940000000001 0.356205 1.8501 3 h after dark 1.285382 0.458906 2.02046 6 h after dark 1.2607086666666667 0.656656 1.98233 9 h after dark 1.3595533333333334 1.01141 1.88074 12 h after dark 1.4276075 0.908945 1.94627