1

2

3

1=+

:

2 20082003 51.9% 2008 65.5%2003 68.1% 2008 81.6%

20081312332419776790638.6% 2008321.2,1.5 200878639.6%

1

23

XO

456

(1789 -1829)(1829-1883)(1883-1906) (1906-1937)(1937-1955);(1955-2009)

3

4

112345

678910

2

2

3

4

51

2

3

4 20087192009323325

13918288695