	(1)	(2)	(3)	(4)	(5)
	jizhi1	jizhi2	jizhi3	jizhi4	jizhi5
VARIABLES	yanhaihaiguan	yanhaihaiguan	yanhaihaiguan	yanhaihaiguan	yanhaihaiguan
					
treat_year03	0.0494***	0.0438**	0.0516**	0.0344*	0.0396**
	(0.0182)	(0.0175)	(0.0204)	(0.0196)	(0.0193)
lnage		-0.0100*	-0.0095	-0.0084	-0.0089
		(0.0057)	(0.0060)	(0.0059)	(0.0059)
lnsize		0.0102***	0.0107***	0.0078**	0.0079**
		(0.0031)	(0.0032)	(0.0030)	(0.0032)
lnlabor		0.0167***	0.0141***	0.0101***	0.0105***
		(0.0025)	(0.0025)	(0.0021)	(0.0022)
profit			-0.0121	-0.0098	-0.0136
			(0.0128)	(0.0116)	(0.0121)
lngdp			0.0017	0.0019	0.0025
			(0.0042)	(0.0041)	(0.0044)
openness			0.0869***	0.0396***	0.0532**
			(0.0137)	(0.0138)	(0.0262)
lnpeople			0.0071	0.0039	0.0034
			(0.0124)	(0.0108)	(0.0110)
lnrailway				-0.1784***	-0.2018***
				(0.0336)	(0.0365)
lnhighway				0.3178***	0.3190***
				(0.0491)	(0.0495)
Constant	0.3138***	0.1483***	0.0240	-2.0908***	-1.9254***
	(0.0075)	(0.0382)	(0.0874)	(0.5215)	(0.4999)
					
Observations	159,200	149,937	128,742	128,742	119,894
R-squared	0.863	0.862	0.870	0.871	0.868
Robust standard errors in parentheses					
*** p<0.01, ** p<0.05, * p<0.1					
