Nitrous oxide emissions in metric tons generated by fuel combustion in Bulgaria

Period	Nitrous oxide emissions by fuel combustion	Change
2022	1,250	110
2021	1,140	120
2020	1,020	80
2019	1,100	20
2018	1,080	40
2017	1,040	40
2016	1,000	50
2015	1,050	62
2014	988	41
2013	947	93
2012	1,040	50
2011	1,090	90
2010	1,000	27
2009	973	67
2008	1,040	60
2007	1,100	20
2006	1,120	50
2005	1,070	40
2004	1,030	30
2003	1,060	62
2002	998	4
2001	994	28
2000	966	12
1999	978	72
1998	1,050	50
1997	1,000	70
1996	1,070	0
1995	1,070	10
1994	1,080	80
1993	1,160	10
1992	1,150	120
1991	1,270	420
1990	1,690	70
1989	1,760	10
1988	1,750	680
1987	1,070	10
1986	1,080	10
1985	1,070	50
1984	1,020	10
1983	1,030	10
1982	1,020	31
1981	989	11
1980	978	38
1979	940	39
1978	901	73
1977	828	1
1976	827	42
1975	869	35
1974	834	18
1973	852	6
1972	846	12
1971	834	0
1970	834	61
1969	895	113
1968	782	87
1967	695	65
1966	630	47
1965	583	35
1964	548	26
1963	522	22
1962	500	22
1961	478	27
1960	451	30
1959	421	26
1958	395	25
1957	370	22
1956	348	21
1955	327	19
1954	308	18
1953	290	17
1952	273	16
1951	257	16
1950	241	15
1949	226	16
1948	210	16
1947	194	15
1946	179	14
1945	165	13
1944	152	12
1943	140	9
1942	131	7
1941	124	5
1940	119	3
1939	116	2
1938	114	2
1937	112	2
1936	110	2
1935	108	1
1934	107	1
1933	106	2
1932	104	2
1931	102	1
1930	101	3
1929	99	2
1928	96	3
1927	94	2
1926	91	3
1925	89	2
1924	86	2
1923	84	2
1922	82	2
1921	80	2
1920	79	1
1919	77	1
1918	76	1
1917	75	1
1916	74	1
1915	74	1
1914	73	1
1913	72	1
1912	71	1
1911	70	1
1910	68	2
1909	67	2
1908	65	2
1907	63	3
1906	60	3
1905	57	3
1904	55	3
1903	52