1976
29.6
25.3
20.1
19.9
21.4
46.1
169
246
219
90.4
44.8
29.9
1977
23.2
19
13.8
12
16.5
40.8
155
383
165
70.9
41
30.1
1978
24.3
20.9
19.3
19.4
17.4
155
376
412
244
120
55.6
36.3
1979
26.1
26.6
17.8
15
15.5
21.5
218
314
116
65.1
37.3
32.1
1980
22.1
17.3
14.7
8.60
15.7
87
242
357
441
114
64.9
43.2
1981
36.6
26.6
24.5
18.6
23.3
56.1
242
302
527
147
68
40.4
1982
31.1
28
25.2
17.3
18.7
38.1
162
365
357
101
57.6
36.5
1983
29
24.3
19.2
16
36
34.1
69
196
519
179
55.8
36.5
1984
28.9
23
18.5
16.4
14
65.4
316
240
373
73.6
38.6
27.5
1985
24.4
20
17
18.4
21.8
48.2
193
250
257
139
46.8
28.9
1986
20.5
16.6
11.3
9.34
11.6
143
319
343
304
135
68.4
46.4
1987
32.8
26.2
21.1
15.9
16
17.7
211
377
314
116
60.1
40.7
1988
29.8
23.8
22.9
17.4
19.6
50.8
385
518
230
75.1
42
30.1
1989
35.6
19.7
15.2
10.3
12.1
42.4
277
538
312
139
59.2
40.6
1990
26.9
28.6
27.4
16.2
30.7
62.6
366
377
195
114
54.9
37.3
1991
32.8
17.5
16.4
11.6
10.7
80.8
92.5
423
349
81
41.9
30.7
1992
25.9
21.7
16.2
13.5
14.2
30
40.9
262
182
60.9
26.1
18.4
1993
15.3
12.9
13.8
10.3
9.81
29.7
98.2
403
391
109
51.4
36.3
1994
32
28.8
23.2
20.5
23
69.8
211
350
208
68.5
35
25.3
1995
22.6
19.3
15.5
11.9
11
57.6
160
297
202
69.9
53
30.5
1996
26.4
29.5
21.5
16.4
10.7
66.2
362
432
306
164
68.8
49.2
1997
22.2
16.6
13.7
17.3
12.2
25.5
434
368
177
62.9
31.6
32.4
1998
16.9
12
12.7
11.4
13.6
63.9
365
550
356
121
56.4
34.3
1999
25.7
19.6
14.9
11.3
17.4
222
241
445
534
190
64.8
42.4
2000
17
12.7
10.8
17.5
48.1
455
994
1200
909
106
27.5
8.55
2001
22.8
19.9
19.7
19.3
24.7
7.9
197
447
309
87.2
50
33.5
2002
30.7
29.5
21.8
18.9
21.1
35.2
73.5
258
125
64.3
35.1
25.7
2003
23.2
23.8
18.9
13.9
12.9
45.9
286
534
422
177
50
31.2
2004
26.5
20.6
15
14.4
16.5
20.8
141
148
129
99.2
54.8
38.4
2005
34.1
30
24.6
17.7
16.4
29.7
183
317
204
114
49.6
32.9
2006
26.4
20.9
17.4
20
24.3
68.1
218
182
166
61.3
37.6
29.2




















































