They are listed in order of difficulty, and you must choose the most difficult you can answer positively. The number in the first column on the right will give you your specific fluency for that component, and the second column gives you one fourth of the overal fluency score. When you have answered for all four components, add the four overall fluency scores to get the total overal fluency score. You can see an Example of how I used this page to rate my russian skills. Reading fluency depends a lot on the difficulty of what you read.
Letters are quite easy, newspapers are moderately difficult and litterature is the most difficult.
If everybody does not want to read Tolstoy or Maupassant in the original, most people still aim to read newspapers fluently. You can read the newspapers and get about half of the content. You read newspapers with total fluency, with almost no unknow words. Oral Understanding Understanding the language when it is spoken is more difficult in some languages than others. German, Russian and some spanish accents are very clear, but french, some english and spanish accents are more blurred.