condition mean min max 4 h after light 17.5679535 16.035274 19.100633 8 h after light 16.4367105 13.917679 18.955742 12 h after light 15.695014 14.083958 17.30607 4 h after dark 14.1896035 13.611975 14.767232 8 h after dark 14.3736005 13.679553 15.067648 12 h after dark 24.948743 24.948743 24.948743