Table: green party of canada
Question: Is the percentage of popular vote obtained by the Green Party of Canada trending upwards over the elections from 1984 to 2008?
Step 1 (Operation, Indexing): election
Step 2 (Operation, Sorting): election
Step 3 (Operation, Indexing): % of popular vote
Step 4 (Reasoning, Other Commonsense Reasoning): trending upwards
Answer: Yes