Table:
year
california
none
u.s
none
ca share of u.s. pev sales(3)
ratio ca/us market shares

all-electric
bev market share(1)
plug-in hybrid
phev market share(1)
total pev california
pev market share(1)
total pev sales
pev market share(2)

2010
300
0.0%
97
0.0%
397
0.0%
none
397
0.003%
none
100%
none

2011
5,302
0.4%
1,662
0.1%
6,964
0.5%
none
17,821
0.14%
none
39.1%
3.57

2012
5,990
0.4%
14,103
0.9%
20,093
1.3%
none
53,392
0.37%
none
37.6%
3.51

2013
21,912
1.3%
20,633
1.2%
42,545
2.5%
none
96,602
0.62%
none
44.0%
4.03

2014
29,536
1.6%
29,949
1.6%
59,485
3.2%
none
123,347
0.71%
none
48.2%
4.27

2015
34,477
1.7%
27,740
1.4%
62,217
3.1%
none
114,248
0.66%
none
54.5%
4.70

2016
40,347
1.9%
34,727
1.7%
75,074
3.6%
none
157,181
0.90%
none
47.8%
4.00

2017
53,500
2.6%
45,040
2.2%
98,540
4.8%
none
194,479
1.13%
none
50.7%
4.23

2018
94,813
4.7%
62,846
3.1%
157,659
7.8%
none
361,307
2.10%
none
43.6%
3.71

none
none
none
none
none
none
none
none
none
none
none
none
none

total
286,177
n.a
236,797
n.a
522,974
n.a
none
1,118,722
n.a
none
46.7%
n.a

notes: (1) market share of total new car registrations in california. (2) u.s

Statement: california's market share was 4.7 times higher relative to the u.s. market in 2015.
Question: how many times of california's market share are higher relative to the u.s. market in 2015?
Answer: [4.7]