The United Nations Population Fund (UNFPA) has launched this year's edition of the State of the World's Population Report to guide policy makers and researchers to institute measures to prevent conflicts and enhance development.

The report on the theme: "People and Possibilities in a World of 7 billion" focuses on the world population which is expected to reach 7 billion on the 31st of October, 2011.

It also looks at the trends that are defining our world of 7 billion and shows what people in different countries and circumstances are doing in their own communities to make the most of our world in 7 billion.

The 10 countries with the largest total population:

1	People's Republic of China[60]	1,347,100,000	October 28, 2011	19.3%	Chinese Official Population Clock
2	India	1,203,710,000	March 2011	17%	Census of India Organisation
3	United States	312,513,000	October 28, 2011	4.48%	United States Official Population Clock
4	Indonesia	238,400,000	May 2010	3.36%	SuluhNusantara Indonesia Census report
5	Brazil	195,446,000	February 28, 2011	2.8%	Brazilian Official Population Clock
6	Pakistan	177,653,000	October 28, 2011	2.55%	Official Pakistani Population Clock
7	Bangladesh	158,570,535	July 2011	2.27%	2011 CIA World Factbook estimate
8	Nigeria	155,215,000	July 2011	2.23%	2011 CIA World Factbook estimate
9	Russia	141,927,297	January 1, 2010	2.036%	Federal State Statistics Service of Russia
10	Japan	127,380,000	June 1, 2010	1.83%	Official Japan Statistics Bureau

Approximately 4.03 billion people live in these ten countries, representing 58.7% of the world's population as of November 2010 collect from wikipidia, ckp swamiji