Table:
revised growth in annual real gdp
previously-published growth in annual real gdp
absolute revision to growth in annual real gdp

percent
percentage point

2017
3.04
3.17
0.13

2018
2.43
2.01
0.42

2019
1.86
1.66
0.20

2017 to 2019 average
2.44
2.28
0.16

Statement: the absolute revision to growth in annual real gdp was highest in 2018.
Question: which year's revision to growth in annual real gdp was highest?
Answer: [2018.0]