World Population Prospects: The 2012 Revision (United Nations
publication, Volume I: Comprehensive Tables ST/ESA/SER.A/336)

Total fertility per woman:
world:
1970-1975: 4,4
1990-1995: 3,0
2005-2010: 2,5
2010-2015: 2,5
2025-2030: 2,4