Same exact score. 22 years old with a Bachelor's degree. It doesn't concern me that I don't come across rare English words in my daily reading enough to know the right column. I also suspect that the average quiz-taker voted yes to words they were contextually familiar with, but couldn't give you a straight definition.

18,100 words, 24 years old, non-native speaker. I've never read a fiction book in English, only technical ones.