impurities

16:25

14:04

25:34

31:13

12:16

26:07

22:08

16:06

3:17

23:33

2:23

6:32

44:52

1:21

3:22

22:48

8:17

5:51

10:50

2:56

7:27

15:03

3:18

3:12

10:02

20:26

1:43

2:49

6:55

4:37

50:31

28:06

1:04:52

5:55

15:09

17:12

5:05

3:34

3:21

2:55

3:23

30:51

1:38

29:41

3:17

3:15

6:57

3:50

00:45

8:42

3:17

3:21

26:07

3:21

10:40

7:19

16:20

8:22

10:09

19:12