World Population Day is observed annually on July 11th to raise awareness of global population issues. The 2018 theme was "Family Planning is a Human Right". Global population is expected to reach 8.6 billion by 2030, 9.8 billion by 2050, and 11.2 billion by 2100. Countries with the highest birth rates are Angola, Niger and Mali, while countries with the lowest birth rates are Japan, Italy and Monaco. South Sudan, Angola and Malawi have the highest population growth rates, while countries like Ukraine, Russia, Belarus, Hungary, Japan, Italy and Greece have negative population growth rates. Niger has the world's highest fertility rate, followed by Mali. Singapore has the world's