Question: What was the maximum value that Christer Tornell gave when Trine Dehli Cleve gave a 9?
Schema: create table table_28677723_8 (christer_tornell integer, trine_dehli_cleve varchar, PRIMARY KEY (christer_tornell))
SQL: select max(christer_tornell) from table_28677723_8 where trine_dehli_cleve = 9