What is the average adolescent fertility rate of the country whose Alpha2Code is 1A over the years this indicator was calculated.
the average adolescent fertility rate is DIVIDE(SUM(value), SUM(IndicatorName like 'adolescent fertility rate%'))
SELECT AVG(T2.Value) FROM Country AS T1 INNER JOIN Indicators AS T2 ON T1.CountryCode = T2.Countrycode WHERE T1.Alpha2Code = '1A' AND T2.IndicatorName LIKE 'adolescent fertility rate%'