Total fertility rate (TFR) is the expected number of children born per woman in her child bearing years. The world TFR decreased from 5.02 to 2.65 between 1950 and 2005.

Continent wise TFR changes are below:

• Europe 2.66 to 1.41
• North America 3.47 to 1.99
• Oceania 3.87 to 2.30
• Central America 6.38 to 2.66
• South America 5.75 to 2.49
• Asia (excluding Middle East) 5.85 to 2.43
• Middle East & North Africa 6.99 to 3.37
• Sub-Saharan Africa 6.7 to 5.53

India has seen a 40% fall in fertility rates. As per 2009 statistics, India’s TFR is 2.68. Thailand has seen fast change in fertility rates due to changing socio economic scenario. Its TFR is less than 2.5(1997). Argentina has also gone through the demographic transition and has a stable TFR of less than 2.5(1997).

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