This site deals with English learning. I am an English teacher (CELTA certified). I am also learning English (more like a native-speaker studying his/her native language because I can manage almost everything I need to or I want to in English. While I was living in NYC by myself, I had no trouble at all). So I am very much intrigued by anything related to English learning. There are many intriguing English vocabulary test sites and I took one. I introduce one of them.
I want to achieve 30000 within a few years.
I took similar tests by several different sites and the numbers they give are almost the same so I think those numbers are pretty accurate.