Q: In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
What color represents no increase  in ranking besides blue, Context: On the following table, green arrows () represent an increase in ranking over the previous study, while red arrows () represent a decrease in ranking. They are followed by the number of spaces they moved. Blue dashes () represent a nation that did not move in the rankings since the previous study.
A:
red