The World Development Indicators (WDI) is the statistical benchmark that helps measure the progress of development. The WDI provides a comprehensive overview of development drawing on data from the World Bank and more than 30 partners.

Footnotes:
2: Preliminary.
3: Extrapolated assuming the same growth rate as the previous 6 months.
4: Interpolated using geometric mean between beginning of year population for 2013 (9,356,483 from Eurostat) and 2014 (the 2014 pop (9,477,100) is from Azerbaijan's Statistical Committee)
5: Break in series.
6: Extrapolated assuming the same growth rate as the first 6 months.
7: Extrapolated assuming the same growth rate during beg 2013 - mid 2013 as mid 2012 - beg 2013.
8: Adjusted for Syrian refugees.
9: Geometric mean of official estimates of end-year population for 2011 and 2012.
10: Interpolated using the Mid-year population for 2010 (1995,680) and End-year population for 2011 (1798,645), assuming constant growth.
11: Interpolated between 2000 and 2005 assuming constant rate of growth.
12: Calculated from end of year population of 2011 and 2012 using geometric mean.
13: Calculated from end of year population of 2010 and 2011 using geometric mean.
14: Excluding Agalega and St. Brandon. Extrapolated assuming the same growth rate as the previous 6 months.
15: Excluding Agalega and St. Brandon.
16: Adjusted to mid-year population by geometric mean, using official country figure.
17: Calculated backwards from 1995 using UN WPP2010's growth rate for whole Moldova, and decimal points were deleted.
18: Extrapolated assuming the same growth rate as previous year.
19: Extrapolated assuming the same growth rate as July 1st 2011 to January 1st 2012. Preliminary.
20: Estimated using geometric mean of January 1st populations of 2011 and 2012.
21: Estimated using geometric mean of January 1st populations of 2010 and 2011.
22: Interpolated between 2007 and 2009 using geometric mean.
23: There is a discontinuity in 1991 caused by Statistics New Zealand's change from 'de facto' to 'resident' population estimates.
24: Data on Kosovo are excluded. Extrapolated assuming the same growth rate as the previous 6 months.
25: Data on Kosovo are excluded.
26: Data on Kosovo are excluded. Break in series.
27: Break in series: revision of estimates from 2003 excluding residents abroad (>=12 months)
28: Break in series on Jan 1, 2008: average pop in 2007 is part of new series.
29: Preliminary. Break in series.
30: Interpolated between 2004 and 2010 assuming constant rate of growth.
31: Interpolated between 1997-2007.
32: Interpolated between 1990-1997.