It is estimated to be 6.80 billion.
The world population is not declining. World population 1950: 2,555,948,654 World population 2011: 6,919,191,862 Growth for period: 4,363,243,208 people
56% of the world's current population
5%
4,140,336,501 (60% of the world's current human population)
6.5 billion in 2010
about 55,000 or 7%
3/5
a lot
It is around one billion.
6,925,300,000 (2011)
about 15000
The population of Mumbai is approximately 18,000,000.