The incarceration rate in the United States of America is the highest in the world. As of 2009, the incarceration rate was 743 per 100,000 of national population (0.743%). In comparison, Rwanda had the second highest, at 595 per 100,000, Canada was 123rd in the world at 117 per 100,000, and China had 122 per 100,000. While the United States represents about 5 percent of the world's population, it houses around 25 percent of the world's prisoners. Imprisonment of America's 2.3 million prisoners, costing $24,000 per inmate per year, and $5.1 billion in new prison construction, consumes $60.3 billion in budget expenditures.