Table 5: Normalized sigma and gamma road fatality indexes for 19 high income and 9 middle income countries (1994~2015).

	High Income OECD (19)				Middle Income OECD (9)
	Sigma		Gamma		Sigma			Gamma
1994	1.0000		1.0000	***	1.0000			1.0000	***
1995	0.9121		0.9601	***	0.8432			0.9620	***
1996	1.2221		0.9711	***	0.9182			0.9583	***
1997	1.0757		0.9702	***	0.7836			0.9250	***
1998	0.8547		0.9070	***	0.8904			0.8667	***
1999	0.9082		0.9596	***	0.9196			0.9417	***
2000	0.9725		0.9044	***	0.9413			0.9333	***
2001	0.8765		0.9271	***	0.9278			0.9417	***
2002	0.7925		0.9114	***	0.9234			0.8583	***
2003	0.8268		0.9153	***	0.9173			0.8167	***
2004	0.8284		0.9026	***	0.9690			0.8750	***
2005	0.8999		0.9193	***	0.8341			0.8667	***
2006	0.8981		0.8162	***	0.8599			0.8083	***
2007	0.9324		0.9535	***	0.8310			0.7917	***
2008	0.9371		0.9412	***	0.8081			0.7500	***
2009	1.0105		0.9026	***	0.8611			0.7417	***
2010	1.1078		0.9465	***	0.7464			0.8250	***
2011	1.0250		0.9447	***	0.7781			0.8250	***
2012	1.1904		0.9307	***	0.6405			0.7417	***
2013	1.1470		0.8618	***	0.7498			0.8500	***
2014	1.2517		0.9412	***	0.8591			0.7333	***
2015	1.1635		0.8675	***	0.6440			0.4917	***
CAGR(%)	0.69%		-0.64%		-1.98%			-3.18%