2003
33.9
34
26.7
20.1
16.1
89.6
439
625
467
157
67.2
45.1
2004
37.2
27.7
20.2
18.3
26.5
40.6
259
165
159
104
40
28.5
2005
30.7
27.2
19.1
14.5
18.6
28.3
307
455
259
184
47.8
23.7
2006
15.4
13.9
12.6
24.6
23.1
110
361
238
176
57.1
35.8
30.3



















































































































































































































































































































































































































