https://febpwt.webhosting.rug.nl/Dmn/AggregateXs/VariableCodeSelect

find the country of Poland and do the calculation as below

Select RGDPNA series [which is real GDP from National Accounts - real means it is adjusted for ination]. Find your adopted country. Report: Real GDP in 1999, 2009, 2019 Compute: average annual growth rate of real lGDP for your adopted country between 1999 and 2009 and between 2009 and 2019, in percent per year. Here is how (approximation): 10-year growth rate = GDP [2009) I GDP (1999] - 1. Divide by 10 to get annual. Multiply by 100 to get percent. Do the same for 2009-2019. Report all 5 numbers