变量	2003	2005	2006	2008	2010	2012	2013	2015	2017
edu	0.0855^***	0.0768^***	0.0694^***	0.073^***	0.0793^***	0.0727^***	0.0624^***	0.0534^***	0.0669^***
edu	(0.0050)	(0.0037)	(0.0061)	(0.0057)	(0.0050)	(0.0044)	(0.0049)	(0.0044)	(0.0048)
exp	0.0026	0.0049^**	0.0138^***	0.0048	0.0072^**	0.0004	0.0036	0.0029	0.0076^***
exp	(0.0040)	(0.0025)	(0.0048)	(0.0036)	(0.0030)	(0.0030)	(0.0029)	(0.0030)	(0.0027)
exp²	0.0001^**	−0.0001^***	0.0001	−0.0001	−0.00003	−0.0001^***	−0.0002^***	−0.0003^***	−0.0001^***
exp²	(0.00006)	(0.00004)	(0.0001)	(0.0001)	(0.00004)	(0.00004)	(0.00004)	(0.00004)	(0.00004)
gender	0.2080^***	0.3080^***	0.4120^***	0.4090^***	0.3420^***	0.3250^***	0.3620^***	0.3310^***	0.3040^***
gender	(0.0248)	(0.0210)	(0.0259)	(0.0272)	(0.0230)	(0.0222)	(0.0218)	(0.025)	(0.0224)
politic	0.1100^***	0.1160^***	0.0162	0.0884^**	0.0861^***	0.0903^***	0.0616^*	0.0537	0.1010^***
politic	(0.0291)	(0.0286)	(0.0348)	(0.0368)	(0.0297)	(0.0279)	(0.0320)	(0.0334)	(0.0290)
f_class	0.3000^***	0.2210^***	0.2090^***	0.3830^***	0.3550^***	0.3070^***	0.3450^***	0.3350^***	0.3420^***
f_class	(0.0155)	(0.0122)	(0.0155)	(0.0204)	(0.0162)	(0.0157)	(0.0181)	(0.0189)	(0.0166)
hk	−0.0433	0.7810^***	0.7550^***	0.6860^***	0.5170^***	0.4440^***	0.4610^***	0.4840^***	0.5210^***
hk	(0.0685)	(0.0271)	(0.0335)	(0.0335)	(0.0297)	(0.0276)	(0.0287)	(0.0307)	(0.0294)
area	0.2160^***	0.2220^***	0.1910^***	0.2810^***	0.2330^***	0.2820^***	0.2650^***	0.2610^***	0.3190^***
area	(0.0161)	(0.0126)	(0.0162)	(0.0173)	(0.0159)	(0.0147)	(0.015)	(0.0178)	(0.0156)
cons	4.7680^***	4.2680^***	4.8850^***	4.5740^***	5.0740^***	5.3790^***	5.5510^***	5.9040^***	5.9840^***
cons	(0.0995)	(0.0551)	(0.101)	(0.0904)	(0.0787)	(0.0756)	(0.0783)	(0.086)	(0.0765)
N	3719	6408	3858	3900	5246	5738	5403	4904	5848
R²	0.305	0.463	0.394	0.460	0.420	0.396	0.410	0.374	0.438
F值	183.35	691.73	344.85	413.22	430.49	423.79	430.13	315.80	454.60