1990
6165
1374
7539
81.8
18.2
1991
10152
4923
15075
67.3
32.7
1992
10996
5264
16260
67.6
32.4
1993
11386
5076
16462
69.2
30.8
1994
11813
5368
17181
68.8
31.2
1995
12500
5894
18394
68.0
32.0
1996
12948
6078
19026
68.1
31.9
1997
13114
6189
19303
67.9
32.1
1998
13210
6012
19222
68.7
31.3
1999
13255
5838
19093
69.4
30.6
2000
13346
5833
19179
69.6
30.4
2001
13428
5784
19212
69.9
30.1
2002
13625
5774
19399
70.2
29.8
2003
13641
5729
19370
70.4
29.6
2004
13901
6295
20196
68.8
31.2
2005
14234
6677
20911
68.1
31.9
2006
14340
6753
21093
68.0
32.0
2007
14552
6816
21368
68.1
31.9
2008
14548
6896
21444
67.8
32.2
2009
14646
6867
21513
68.1
31.9
2010
15454
6522
21976
70.3
29.7
2011
15444
6497
21941
70.4
29.6
2012
15406
6443
21849
70.5
29.5
2013
15363
6473
21836
70.4
29.6
2014
14755
6500
21255
69.4
30.6