As per the UN-Habitat's Global Report on Human Settlements 2009, which one among the following regions has shown the fastest growth rate of urbanization in the last three decades?

1. The question asks which region showed the fastest growth rate of urbanization in the last three decades prior to the UN-Habitat's Global Report on Human Settlements 2009. 2. The UN-Habitat report highlighted trends in global urbanization. 3. During the late 20th and early 21st centuries (the period covered), many countries in Asia experienced rapid economic growth and significant migration from rural to urban areas. 4. While Europe and North America were already highly urbanized with slower growth rates, and Latin America and Caribbean also had high urbanization levels, Asia (particularly East, South, and Southeast Asia) exhibited the highest *rates* of urban population growth during this period. 5. Therefore, Asia showed the fastest growth rate of urbanization in the specified timeframe according to reports like the one cited.