Table: government of hamburg
Question: What is the percentage of votes received by parties that do not identify as either center-left or center-right?
Step 1 (Operation, Indexing): position
Step 2 (Operation, Filter): position
Step 3 (Reasoning, Grounding): votes, votes (2011)
Step 4 (Reasoning, Aggregating): SUM, votes (2011)
Answer: 13.1%