As you undertake this activity, you'll need to undertake your own research – either as homework or using school ICT equipment. There's a variety of sources where you can find statistics and information, such as news outlets (example 1; example 2), the government, and charities, such as Shelter Cymru. Some of the information can be a little complicated – but it's the perfect opportunity to practice your reading skills by skimming and scanning for relevant bits of information. Good luck!