CREATE TABLE table_name_17 (_percentage_of_pop INTEGER, country__or_dependent_territory_ VARCHAR(255), average_relative_annual_growth___percentage_ VARCHAR(255))
What is the average % of population Tunisia, which has an average relative annual growth smaller than 1.03?
    
SQL: SELECT AVG(_percentage_of_pop) FROM table_name_17 WHERE country__or_dependent_territory_ = "tunisia" AND average_relative_annual_growth___percentage_ < 1.03