There is a huge wealth of evidence—we've heard across the floor as well. Let me just mention some of it. It reduces the lifetime incidence of dental decay by 40 percent, and it is about half of our drinking water that is fluoridated. We saw in 2019 more than 40 percent of all five-year-olds and more than 60 percent of Māori and Pacific five-year-olds already had some degree of tooth decay—40 percent of the general population of five-year-olds and 60 percent of our Māori and Pacific. That's huge, and that's something that we need to do to make sure that we are helping our communities that suffer. That's why I'm so grateful on this side of the House that we're aiming to lift incomes, lifting children out of poverty, because those are the things that add to poor health outcomes for our people.