Nitrogen use efficiency in American Samoa

American Samoa: Nitrogen use efficiency was 62.1% in 2014. ▲ Rising

Latest (2014)
62.1%
Change on year
up 23.8%
World rank
67th
of 205 countries
All-time high
62.1%
in 2014
All-time low
19.4%
in 1989
Years of data
54
1961–2014

Nitrogen use efficiency in American Samoa, 1961–2014

2030405060196119872014

Source: Lassaletta et al. (2014) – processed by Our World in Data. Measured in %.

Analysis

The most recent figure for nitrogen use efficiency in American Samoa is 62.1%, measured in 2014. That is the highest value across all 54 years on record.

The figure is up 23.8% on the previous year and up 54.9% over ten years.

Over the whole period, nitrogen use efficiency in American Samoa peaked at 62.1% in 2014 and was at its lowest, 19.4%, in 1989.

That places American Samoa 67th out of 205 countries with data for 2014, putting it in the middle of the range.

The long-run direction has been consistently rising across the 54 years of available data.

Nitrogen use efficiency in American Samoa, year by year

Annual values for Nitrogen use efficiency in American Samoa, 1961 to 2014.
Year % Change
1961 34.9%
1962 40.7% +16.6%
1963 36.6% -10.1%
1964 26.7% -27.2%
1965 23.3% -12.8%
1966 26.0% +11.8%
1967 33.7% +29.5%
1968 35.6% +5.9%
1969 36.1% +1.2%
1970 33.2% -7.9%
1971 32.3% -2.6%
1972 31.5% -2.4%
1973 31.3% -0.7%
1974 30.3% -3.2%
1975 30.1% -0.7%
1976 29.5% -2.1%
1977 28.8% -2.2%
1978 27.7% -3.7%
1979 23.4% -15.8%
1980 26.2% +12.1%
1981 25.7% -2.0%
1982 25.0% -2.5%
1983 24.1% -3.8%
1984 22.3% -7.2%
1985 21.1% -5.6%
1986 21.4% +1.4%
1987 19.6% -8.1%
1988 19.5% -0.4%
1989 19.4% -0.7%
1990 24.4% +25.6%
1991 23.5% -3.4%
1992 23.8% +1.0%
1993 26.4% +11.0%
1994 28.0% +6.1%
1995 28.8% +3.0%
1996 29.8% +3.2%
1997 31.1% +4.6%
1998 40.3% +29.3%
1999 28.8% -28.6%
2000 32.2% +11.8%
2001 36.5% +13.7%
2002 38.2% +4.6%
2003 40.9% +6.9%
2004 40.1% -2.0%
2005 42.9% +7.2%
2006 43.6% +1.6%
2007 44.9% +3.0%
2008 45.9% +2.1%
2009 47.2% +2.9%
2010 47.5% +0.5%
2011 47.5% -0.0%
2012 46.2% -2.7%
2013 50.1% +8.5%
2014 62.1% +23.8%

American Samoa compared with similar countries

  • American Samoa's 62.1% is above the median for high income countries, which is 36.0%, 1.7× the median. (69 countries reporting)
  • American Samoa's 62.1% is above the median for East Asia & Pacific, which is 44.5%, 1.4× the median. (32 countries reporting)

Averages by decade

DecadeAverage LowestHighest Years
1960s 32.6% 23.3% 40.7% 9
1970s 29.8% 23.4% 33.2% 10
1980s 22.4% 19.4% 26.2% 10
1990s 28.5% 23.5% 40.3% 10
2000s 41.3% 32.2% 47.2% 10
2010s 50.7% 46.2% 62.1% 5

Countries ranked near American Samoa

  1. 64 Germany 62.6% compare
  2. 65 Guinea-Bissau 62.2% compare
  3. 66 Uruguay 62.2% compare
  4. 68 Australia 62.0% compare
  5. 69 Kenya 62.0% compare
  6. 70 Liberia 61.7% compare

See the full ranking of 205 places →

More reference data data for American Samoa

All data for American Samoa →

Frequently asked questions

What is nitrogen use efficiency in American Samoa?
Nitrogen use efficiency in American Samoa was 62.1% in 2014, according to Lassaletta et al. (2014) – processed by Our World in Data.
What is the highest nitrogen use efficiency recorded in American Samoa?
The highest recorded value was 62.1% in 2014.
What is the lowest nitrogen use efficiency recorded in American Samoa?
The lowest recorded value was 19.4% in 1989.
How does American Samoa rank for nitrogen use efficiency?
American Samoa ranks 67th out of 205 countries with data for 2014.
Is nitrogen use efficiency rising or falling in American Samoa?
Over the last ten years it is up 54.9%. The long-run trend across the full record is rising.
Where does this American Samoa data come from?
The figures come from Lassaletta et al. (2014) – processed by Our World in Data, published as part of Nitrogen use efficiency. Statizoid updates them automatically from the source API.

Download this data

CSV · JSON — 54 observations, free to reuse under CC BY 4.0 (Our World in Data).

Share, cite or embed this page

Cite this page

Nitrogen use efficiency in American Samoa. Statizoid, drawing on Lassaletta et al. (2014) – processed by Our World in Data. Retrieved 22 September 2026, from https://reference.statizoid.com/stat/nitrogen-use-efficiency/american-samoa/

Embed or link this data

Paste this into a page to link back to these figures. The data itself is free to reuse under CC BY 4.0 (Our World in Data); please keep the attribution.

<a href="https://reference.statizoid.com/stat/nitrogen-use-efficiency/american-samoa/">Nitrogen use efficiency in American Samoa</a> — Statizoid

About this data

Indicator
Nitrogen use efficiency
Unit
%
Source
Lassaletta et al. (2014) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
205 places, 10,031 data points, 1961–2014
Last refreshed

Nitrogen use efficiency (NUE) is the ratio between nitrogen inputs and output. A NUE of 40% means that only 40% of nitrogen inputs are converted into nitrogen in the form of crops.