return me the number of citations of " Making database systems usable " in each year .
SELECT YEAR  ,  SUM ( citation_num ) FROM publication WHERE title  =  "Making database systems usable" GROUP BY YEAR;
SELECT YEAR  ,  SUM ( citation_num ) FROM publication WHERE title  =  "Making database systems usable" GROUP BY YEAR;
[{'Nenhum': 'Nenhum resultado encontrado'}]