Table:
immigrant families
second-generation families
third-generation-or-more families
all families

percent

black children

low income before taxes

2000
46.1
35.5
35.2
43.4

2005
43.5
34.9
31.9
40.7

2010
35.8
28.8
30.0
34.4

2015
30.0
24.9
24.4
28.8

low income

2015
27.0
24.3
26.7
27.2

other children

low income before taxes

2000
24.2
11.7
16.4
17.5

2005
25.3
11.2
14.2
16.5

2010
21.8
10.4
12.7
14.9

2015
19.2
8.1
10.3
12.8

low income

2015
18.8
9.7
12.8
14.4

Statement: the before-tax low-income rate for black children born to immigrant families fell by nearly 16 percentage points from 46% in 2000 to 30% in 2015.
Question: how many percentage points of the before-tax low-income rate for black children born to immigrant families are decreased from 2000 to 2015?
Answer: [16.1]