elementary school vs lycée

elementary school

noun
  • A school for children, typically older than toddlers and younger than adolescents. In the U.S., elementary schools cover grades 1 through 5, and the ages of the children are usually 6-11 years. At a minimum, elementary schools will teach basic reading, writing, arithmetic, and history. Historically also used in the UK. 

lycée

noun
  • A public secondary school in France. 

How often have the words elementary school and lycée occurred in a corpus of books? (source: Google Ngram Viewer )