"user_id","enrolled_at","course_id"
2,2023-01-20 00:00:00.000,1
3,2023-03-05 00:00:00.000,2
6,2023-01-06 00:00:00.000,1
6,2023-01-10 00:00:00.000,2
6,2023-02-05 00:00:00.000,4
7,2023-01-13 00:00:00.000,1
7,2023-03-10 00:00:00.000,3
8,2023-01-22 00:00:00.000,3
13,2023-01-19 00:00:00.000,2
13,2023-02-20 00:00:00.000,4
16,2023-02-16 00:00:00.000,2
16,2023-02-16 00:00:00.000,4
19,2023-04-11 00:00:00.000,1
19,2023-04-11 00:00:00.000,2
2,2023-03-15 00:00:00.000,3
4,2023-03-10 00:00:00.000,2
7,2023-02-01 00:00:00.000,2
9,2023-02-15 00:00:00.000,1
18,2023-04-05 00:00:00.000,4
4,2023-04-01 00:00:00.000,3
8,2023-01-22 00:00:00.000,1
8,2023-01-22 00:00:00.000,2
9,2023-02-12 00:00:00.000,4
10,2023-04-16 00:00:00.000,1
18,2023-04-02 00:00:00.000,1
3,2023-02-25 00:00:00.000,1
6,2023-03-08 00:00:00.000,3
1,2023-02-01 00:00:00.000,2
11,2023-04-21 00:00:00.000,2
14,2023-01-09 00:00:00.000,2
14,2023-01-09 00:00:00.000,3
14,2023-03-20 00:00:00.000,5
17,2023-03-22 00:00:00.000,3
20,2023-04-19 00:00:00.000,2
12,2023-03-10 00:00:00.000,3
1,2023-01-15 00:00:00.000,1
12,2023-01-16 00:00:00.000,1
14,2023-01-09 00:00:00.000,1
14,2023-02-01 00:00:00.000,4
15,2023-01-11 00:00:00.000,1
15,2023-03-05 00:00:00.000,3
17,2023-03-25 00:00:00.000,5
5,2023-03-20 00:00:00.000,5
1,2023-02-10 00:00:00.000,4
15,2023-02-01 00:00:00.000,2