The table shows the number of students with the following scores. A higher score means a better performance. Prizes were given to the top 7 students. Valen won a prize. What was the lowest he could have scored?
Score | 19 | 21 | 22 | 24 | 25 | 27 | 30 |
Students | 1 | 4 | 8 | 9 | 5 | 4 | 3 |