condition mean min max 0 h after light 2.669375 2.48816 2.85059 2 h after light 8.88442 8.04418 9.72466 4 h after light 10.22775 10.0441 10.4114 8 h after light 19.8086 17.1065 22.5107 12 h after light 13.974799999999998 13.0156 14.934 2 h after dark 10.59705 10.0897 11.1044 4 h after dark 8.080005 7.55292 8.60709 8 h after dark 6.94043 6.60179 7.27907 12 h after dark 3.5414149999999998 3.20733 3.8755