In 2000, the estimate for the global population was six billion.
Explanation:
The global population of humans has been growing for thousands of years. For large portions of that time though the growth has been very slow, with the global population seemingly stagnating. This has changed on several occasions when the population has experienced rapid growth, and one of those periods has been between the end of World War II and 2000, with the earlier half being known as ''baby boom'' period.
During this period, the global population skyrocketed. The estimates for the year of 2000 were that the world has around six billion people. While the growth has slowed down since 2000, the global population is still on the rise, and even though will slower tempo it is expected to continue growing during the next few decades. At present, it is estimated that the world has around 7.5 billion people.
Countries that contribute the most to the global population growth are:
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