I do want to point to a few of the benefits—if you'll let me, Mr Speaker—about fluoride, because when I was sitting on the Health Committee to look into the inquiry, we did hear from a lot of people who weren't convinced about the science based on fluoride, rather than what the particular aspect of this was. And I do want to make the point very clear that the science is settled on fluoride and the benefit to dental health. Many people do not realise that we have naturally occurring fluoride in water supplies. New Zealand, however, has a lower amount of naturally occurring fluoride than in other countries. So we have around 0.2 parts per million of fluoride that naturally occurs in our water supplies. It's not much—it's a very, very small amount. But if we look at what happens on average around the world, there are actually countries where you have 10 parts per million. So you look at how big that difference is: 0.2 versus 10 parts per million, and the World Health Organization suggests and recommends that we increase the number of those parts per million in our water supply because it does have a benefit to dental health.