Context: Education is compulsory from the age of 7 to 13. The enrollment of boys is higher than that of girls. In 1998, the gross primary enrollment rate was 53.5%, with higher enrollment ratio for males (67.7%) compared to females (40%).

Question: What are the ages when education is compulsory?
Answer: 7 to 13

Question: What gender has a higher enrollment?
Answer: boys

Question: What was the gross primary enrollment rate in 1998?
Answer: 53.5%

Question: What was the gross primary enrollment rate for males?
Answer: 67.7%

Question: What was the gross primary enrollment rate for females?
Answer: 40%