Table:
2011
2015

thousands
percentage
thousands
percentage

persons eligible to vote
24,919.2
100.0
26,079.4
100.0

aboriginal people
604.3
2.4
719.6
2.8

canadian-born, non-aboriginal persons
19,288.0
77.4
19,832.1
76.0

immigrants
4,859.3
19.5
5,366.5
20.6

born outside canada, non-immigrants
167.7
0.7
161.3
0.6

voters
17,445.1
100.0
20,080.8
100.0

aboriginal people
323.2
1.9
490.3
2.4

canadian-born, non-aboriginal persons
13,677.8
78.4
15,443.6
76.9

immigrants
3,329.9
19.1
4,019.4
20.0

born outside canada, non-immigrants
114.1
0.7
127.7
0.6

Statement: in 2015, more than 20 million citizens reported having voted in the federal election, compared with about 17.4 million in 2011-an increase of 2.6 million between 2011 and 2015.
Question: in 2015, how many people did more than 20 million citizens reported having voted in the federal election, compared with about 17.4 million in 2011 increase between 2011 and 2015?
Answer: [2635.7]