condition mean min max 4 h after light 2.806755 2.36816 3.24535 8 h after light 2.403445 1.53533 3.27156 12 h after light 1.9435799999999999 1.59039 2.29677 4 h after dark 4.161063333333333 3.0637 5.7715 8 h after dark 2.939303333333333 2.33045 3.49531 12 h after dark 2.074996666666667 1.72965 2.44044