Data from World Bank. These are the 7 attributes. Use any descriptive column names you deem informative but not overly long like these ones here. Don't use punctuation characters in column names though. Name (longest is 22 characters) Population_millions (integer) Surface_area_thousand_sq_km (integer) GrossNationalIncome_$billions (double) PPP_GrossNationalIncome_$billions (integer) GrossDomesticProduct_%growth (double) GrossDomesticProduct_per_capita_%growth (double)