Question: What is the total number of Since with a Goals larger than 6, and a Name with deco?
SQL: SELECT COUNT("Since") FROM "2-11891841-1" WHERE "Goals" > 6.0 AND "Name" = 'deco';

Question: What is the average Ends with a Since of 2003, and a Name with Márquez?
SQL: SELECT AVG("Ends") FROM "2-11891841-1" WHERE "Since" = 2003.0 AND "Name" = 'Márquez';

Question: What is the sum of Ends with a Name of abidal, and has a Since larger than 2007?
SQL: SELECT SUM("Ends") FROM "2-11891841-1" WHERE "Name" = 'abidal' AND "Since" > 2007.0;