In 2005, the UK joined Iceland, Norway, Finland, Sweden, Netherlands, Austria, Switzerland, and Australia, in banning anonymity for donors. In these countries, the number of donors has risen since the policy change. In Canada, anonymity is still optional and selling sperm or eggs is prohibited. In the USA, assisted reproduction is unregulated, 80% of sperm donors are willing to be known. And parents may even chose their child's gender.