	(1)	(2)	(3)
VARIABLES	Pul	Pul	Pul
			
did	-0.1705***	-0.1409***	-0.0703***
	(0.0267)	(0.0256)	(0.0224)
Constant	4.0074***	3.3101***	1.4191***
	(0.3623)	(0.1928)	(0.2998)
			
Observations	3,990	3,990	3,990
R-squared	0.611	0.403	0.589
Robust standard errors in parentheses			
*** p<0.01, ** p<0.05, * p<0.1			
