Table 2.

Gini coefficient decomposition of dietary diversity of the Chinese population.

Year	Overall Gini coefficient	Differential contribution (%)
		Three regions			The four main areas
		Regional	Intra-regional	Hypervariable density	Regional	Intra-regional	Hypervariable density
1995	0.2712	32.80	33.43	33.77	30.23	48.17	21.60
2000	0.2224	30.99	46.51	22.50	28.58	45.97	25.45
2005	0.1822	28.51	56.35	15.14	26.56	51.52	21.93
2010	0.1512	26.66	63.41	9.93	24.54	55.16	20.30
2015	0.0851	24.84	65.79	9.37	25.06	59.90	15.04
2020	0.0741	24.40	61.98	13.61	26.90	56.88	16.23

Due to space constraints, Table 2 only shows the Gini coefficients of dietary diversity and their decomposition results for some years, and the complete results are shown in Supplementary Table S2.