condition mean min max 4 h after light 0.428682 0.259832 0.597532 8 h after light 2.96977 2.27006 3.66948 12 h after light 6.168570000000001 5.02622 7.31092 4 h after dark 5.369226666666666 4.8678 6.00707 8 h after dark 1.7893700000000001 1.61688 1.90317 12 h after dark 1.7309133333333333 1.12891 2.40034