condition mean min max 4 h after light 2.59326 1.85316 3.35799 8 h after light 3.09983 1.45994 4.25814 12 h after light 4.095463333333333 1.78898 6.56098 4 h after dark 4.38821 3.5081 5.21949 8 h after dark 3.1799233333333334 2.82657 3.73925 12 h after dark 3.05282 2.70307 3.4316