condition mean min max 4 h after light 2.59999 2.18291 3.01707 8 h after light 2.77318 2.74998 2.79638 12 h after light 2.83302 2.80501 2.86103 4 h after dark 4.622315 4.02583 5.2188 8 h after dark 4.051895 3.40532 4.69847 12 h after dark 3.7602100000000003 2.80006 4.72036