80
70
60
50
40
30
14
10
05
00
95
90
85
80
% of working-age population
14
2010
2005
2000
1995
1990
1985
1980
% of working-age population
15
12
9
6
3
0
15
12
9
6
3
0
14
2010
2005
2000
1995
1990
1985
1980
% of working-age population
15
12
9
6
3
0
14
2010
2005
2000
1995
1990
1985
1980
% of working-age population