from beginner to fluent

6:03

10:15

4:18

4:47

5:07:28

47:10

13:31

3:05

17:34

1:20

4:20

1:14:10

18:34

5:07:13

30:52

6:25

5:20

19:34

26:59

4:01

9:27

18:07

20:43

49:11

6:07

18:37

14:34

11:51

3:02

17:06

13:33

12:05

2:43

13:18

19:40

1:13:16

1:30:44

7:26

2:09

5:33