condition mean min max 4 h after light 3.799405 3.24799 4.35082 8 h after light 4.350245 3.7006 4.99989 12 h after light 5.52908 5.30296 5.7552 4 h after dark 5.9438200000000005 5.61824 6.2694 8 h after dark 7.1440850000000005 6.33478 7.95339 12 h after dark 6.25784 6.09798 6.4177