Simplify the following text for a Grade 9 native English-speaking person.
Original: According to the CIA World Factbook , Monaco has the world 's longest life expectancy of 89.8 years ( and Macau Special Administrative Region of the People 's Republic of China has the world 's second longest life expectancy of 84.4 years ) .
Simplified: According to the CIA World Factbook , Macau has the world 's longest life expectancy of 84.4 years .