Nitrous oxide emissions in metric tons generated by chemical industry in Iran

Period	Nitrous oxide emissions by chemical industry	Change
2022	1,840	-60
2021	1,900	0
2020	1,900	+20
2019	1,880	0
2018	1,880	0
2017	1,880	0
2016	1,880	0
2015	1,880	0
2014	1,880	0
2013	1,880	0
2012	1,880	0
2011	1,880	0
2010	1,880	+10
2009	1,870	-9,530
2008	11,400	-23,300
2007	34,700	+12,700
2006	22,000	-7,700
2005	29,700	-15,000
2004	44,700	+42,520
2003	2,180	-90
2002	2,270	-120
2001	2,390	+10
2000	2,380	-60
1999	2,440	-330
1998	2,770	-240
1997	3,010	+40
1996	2,970	+1,030
1995	1,940	-260
1994	2,200	+80
1993	2,120	-400
1992	2,520	+800
1991	1,720	-220
1990	1,940	-140
1989	2,080	-140
1988	2,220	-120
1987	2,340	-110
1986	2,450	-250
1985	2,700	-170
1984	2,870	0
1983	2,870	-150
1982	3,020	-330
1981	3,350	-110
1980	3,460	-140
1979	3,600	+50
1978	3,550	-20
1977	3,570	+60
1976	3,510	+30
1975	3,480	-150
1974	3,630	+220
1973	3,410	+290
1972	3,120	+150
1971	2,970	+120
1970	2,850	-1,590
1969	4,440	+740
1968	3,700	+670
1967	3,030	+570
1966	2,460	+500
1965	1,960	+410
1964	1,550	+320
1963	1,230	+235
1962	995	+145
1961	850	+55
1960	795	+8
1959	787	+6
1958	781	+5
1957	776	+3
1956	773	+3
1955	770	+3
1954	767	+3
1953	764	+4
1952	760	+5
1951	755	+7
1950	748	+14
1949	734	+24
1948	710	+32
1947	678	+38
1946	640	+43
1945	597	+46
1944	551	+47
1943	504	+46
1942	458	+45
1941	413	+40
1940	373	+40
1939	333	+46
1938	287	+49
1937	238	+50
1936	188	+48
1935	140	+45
1934	96	+38
1933	57	+30
1932	27	+20
1931	7	+7
1930	0	0
1929	0	0
1928	0	0
1927	0	0
1926	0	0
1925	0	0
1924	0	0
1923	0	0
1922	0	0
1921	0	0
1920	0	0
1919	0	0
1918	0	0
1917	0	0
1916	0	0
1915	0	0
1914	0	0
1913	0	0
1912	0	0
1911	0	0
1910	0	0
1909	0	0
1908	0	0
1907	0	0
1906	0	0
1905	0	0
1904	0	0
1903	0