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

Period	Nitrous oxide emissions by chemical industry	Change
2022	1,490	-10
2021	1,500	-720
2020	2,220	+370
2019	1,850	+150
2018	1,700	-310
2017	2,010	-260
2016	2,270	-410
2015	2,680	-600
2014	3,280	-940
2013	4,220	-120
2012	4,340	-720
2011	5,060	-1,020
2010	6,080	-1,840
2009	7,920	+390
2008	7,530	+800
2007	6,730	-2,490
2006	9,220	+640
2005	8,580	-1,720
2004	10,300	+610
2003	9,690	+140
2002	9,550	-450
2001	10,000	-11,300
2000	21,300	+8,400
1999	12,900	-20,800
1998	33,700	-4,200
1997	37,900	+2,100
1996	35,800	+3,400
1995	32,400	-400
1994	32,800	+3,600
1993	29,200	-900
1992	30,100	-300
1991	30,400	-1,900
1990	32,300	-5,200
1989	37,500	+300
1988	37,200	+5,600
1987	31,600	-600
1986	32,200	-2,700
1985	34,900	+3,000
1984	31,900	+3,100
1983	28,800	+1,000
1982	27,800	+600
1981	27,200	-300
1980	27,500	-1,900
1979	29,400	-100
1978	29,500	-900
1977	30,400	-400
1976	30,800	+400
1975	30,400	-3,600
1974	34,000	-300
1973	34,300	+1,000
1972	33,300	+2,500
1971	30,800	+800
1970	30,000	-3,300
1969	33,300	+1,500
1968	31,800	+1,200
1967	30,600	+1,000
1966	29,600	+800
1965	28,800	+700
1964	28,100	+700
1963	27,400	+600
1962	26,800	+800
1961	26,000	+800
1960	25,200	+1,000
1959	24,200	+900
1958	23,300	+900
1957	22,400	+900
1956	21,500	+900
1955	20,600	+900
1954	19,700	+900
1953	18,800	+900
1952	17,900	+800
1951	17,100	+900
1950	16,200	+800
1949	15,400	+900
1948	14,500	+800
1947	13,700	+800
1946	12,900	+800
1945	12,100	+800
1944	11,300	+800
1943	10,500	+800
1942	9,700	+800
1941	8,900	+810
1940	8,090	+880
1939	7,210	+1,000
1938	6,210	+1,060
1937	5,150	+1,080
1936	4,070	+1,040
1935	3,030	+960
1934	2,070	+830
1933	1,240	+658
1932	582	+428
1931	154	+154
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