question: what was the mean absolute percentage point revision to the annual average growth rate of real gdp for the 2016 to 2018 period?
table.cells: revised growth in annual real gdp previously-published growth in annual real gdp absolute revision to the growth in annual real gdp
table.cells: percent percentage point
table.cells: 2016 1.00 1.11 0.11
table.cells: 2017 3.17 2.98 0.19
table.cells: 2018 2.01 1.88 0.13
table.cells: 2016 to 2018 average 2.06 1.99 0.07