Motorcycle Ban and Traffic Safety: Evidence from a Quasi-Experiment at Zhejiang, China

Table 4

The statistics of the control variables.

Symbols	Obs.	Mean	S. D.	p1	p50	p99
	198	17.0564	0.7794	15.0855	17.2001	18.3787
	198	6.0399	0.6341	4.6396	6.2037	6.9327
	198	8.8816	0.7895	6.7105	9.0031	11.1365
	198	12.7334	1.2803	9.4676	12.8027	14.8256
	177	7.6779	0.8809	5.4596	7.6672	9.1193
	198	0.1385	0.6402	−1.3180	0.1930	1.6859
	198	0.3878	0.9776	−2.6574	0.5662	2.3016
	176	1.9172	0.6569	0.6299	1.8578	3.2883