Which country has the smallest land area in square kilometers for 19 consecutive years starting from year 1961? Indicate how much is its land area in square kilometers in those years and the income group of the country.
the smallest land area in square kilometers refers to min(value where IndicatorName like 'Land area (sq. km)'); for 19 consecutive years starting from year 1961 refers to Year between 1961 and 1979
SELECT T1.CountryName, SUM(T1.Value) area, T2.IncomeGroup FROM Indicators AS T1 INNER JOIN Country AS T2 ON T1.CountryCode = T2.CountryCode WHERE T1.IndicatorName = 'Land area (sq. km)' AND T1.Year >= 1961 AND T1.Year < 1980 GROUP BY T1.CountryCode ORDER BY SUM(T1.Value) ASC LIMIT 1