Table:
1980 to 2000
2000 to 2013

percent

real gross output
3.7
2.4

contributions

labour input
0.1
0.5

capital input
1.6
3.0

natural capital input
0.4
0.1

intermediate input
1.8
1.6

mfp growth
-0.2
-2.8

addendum

real output growth
3.7
2.4

labour input growth
2.4
7.6

capital input growth
3.9
6.7

natural capital input growth
3.4
2.3

intermediate input growth
4.8
4.6

mfp growth without natural capital
-0.7
-3.6

Statement: there was 2.4% annual growth in gross output in oil and gas extraction from 2000 to 2013.
Question: what's the percent of annual growth in gross output in oil and gas extraction from 2000 to 2013?
Answer: [2.4]