Year

Illiterate

Elementary

Junior

High

College and above

Secondary

Vocational

College

Undergraduate

Graduate

1997

2.1

31

43.2

17.3

6.4

1998

2.1

29.3

45.4

16.8

6.4

1999

2.4

27.2

46.8

17.4

6.2

2001

1.9

25.3

50

16.7

-

-

4.2

1.8

0.1

2002

1.2

20.6

50

20.2

-

-

5.1

2.7

0.3

2003

1.5

21.9

49.3

19

-

-

5.9

2.3

0.2

2004

1.2

20.6

51.2

19.1

-

-

5.7

2

0.22

2005

1.1

18.3

51.1

21

-

-

5.5

2.7

0.31

2006

1.2

18.1

52.9

19.5

-

-

4.9

2.9

0.39

2007

0.8

15.8

53.6

21.3

-

-

5.2

3

0.38

2008

0.6

15.8

53

21.3

-

-

5.5

3.5

0.35

2009

0.7

16.1

52.8

21.9

-

-

5.4

2.7

0.34

2010

0.4

12.8

53.6

22

-

-

6.6

4.1

0.47

2011

0.5

11.6

48.2

26.3

-

-

8.3

4.9

0.2

2012

0.7

11.2

48.4

27.6

-

-

7.7

4.2

0.23

2013

0.3

11.1

48.9

24.8

-

-

9.2

5.3

0.42

2014

0.3

9.4

46.9

27.2

-

-

10.1

5.8

0.35

2015

0.4

10

43.5

19.4

6.8

2.4

9.8

7

0.7