condition mean min max 4 h after light 0.9928745 0.741039 1.24471 8 h after light 1.7522099999999998 1.61354 1.89088 12 h after light 2.3727150000000004 1.47798 3.26745 4 h after dark 2.81296 1.96575 3.66017 8 h after dark 2.202345 2.1389 2.26579 12 h after dark 2.0850549999999997 1.48711 2.683