How many booklists are there for each grade level? Can my student stay in one class for consecutive years?

Our elementary class has 2 rotating booklists, which allows students to take the class for two years in a row without repeating a title. Our junior high class has 3 booklists (soon to be 4, starting Fall of 2023). Our high school classes are organized into 4 distinct years, meant to be taken once for each class.