condition mean min max 0 h after light 2.155255 1.72236 2.58815 4 h after light 7.344950000000001 6.7926 7.8973 8 h after light 3.13776 2.76901 3.50651 4 h after dark 0.9531799999999999 0.84913 1.05723 8 h after dark 2.9810499999999998 2.96854 2.99356 12 h after dark 4.13407 3.01008 5.25806