rowid,course_id,course_name,year,category
1,1,Math,2020,Science
2,2,Chemistry,2020,Science
3,3,History,2020,Humanities
4,4,English,2020,Humanities
5,5,Art,2020,Humanities
6,6,Computer Science,2020,Science
7,7,Physics,2020,Science
8,8,Morals,2020,Humanities
9,9,Music,2020,Humanities
10,10,Math,2021,Science
11,11,Chemistry,2021,Science
12,12,History,2021,Humanities
13,13,English,2021,Humanities
14,14,Art,2021,Humanities
15,15,Computer Science,2021,Science
16,16,Physics,2021,Science
17,17,Morals,2021,Humanities
18,18,Music,2021,Humanities
19,19,Math,2022,Science
20,20,Chemistry,2022,Science
21,21,History,2022,Humanities
22,22,English,2022,Humanities
23,23,Art,2022,Humanities
24,24,Computer Science,2022,Science
25,25,Physics,2022,Science
26,26,Morals,2022,Humanities
27,27,Music,2022,Humanities
28,28,Math,2023,Science
29,29,Chemistry,2023,Science
30,30,History,2023,Humanities
31,31,English,2023,Humanities
32,32,Art,2023,Humanities
33,33,Computer Science,2023,Science
34,34,Physics,2023,Science
35,35,Morals,2023,Humanities
36,36,Music,2023,Humanities
37,37,Math,2024,Science
38,38,Chemistry,2024,Science
39,39,History,2024,Humanities
40,40,English,2024,Humanities
41,41,Art,2024,Humanities
42,42,Computer Science,2024,Science
43,43,Physics,2024,Science
44,44,Morals,2024,Humanities
45,45,Music,2024,Humanities