condition mean min max 4 h after light 5.98187 5.12306 6.84068 8 h after light 5.20033 4.9206 5.48006 12 h after light 4.4365749999999995 4.41125 4.4619 4 h after dark 6.17411 5.63583 6.44996 8 h after dark 5.326336666666666 5.19849 5.52897 12 h after dark 6.710576666666666 5.92448 7.40896