In 20 18, the national average scores of mathematics were: the average score of number one was 61.94 * * 9134, the average score of number two was 6 1.22, and the average score of number three was 64.55.
20 17 with an average score of 79.5. The average score is 8 1.07. The average score is 69.9 on the count of three.