britain 60 million total population - 30 medals = half a medal for every 1 million people
USA 288 million total population - 63 medals 0.357 medals for every 1 million people
china 1284 million total population - 103 medals 0.049 medals for every 1 million people
australia 19 million total population - 49 medals 2.57 medals for every 1 million people