2001	2002
4.7	6
4.1	4
3.9	4.1
5	5.3
5	5.6
4.3	5.2
4.4	5.6
5.6	6.9
5.3	7.2
6.3	8.7
2.6	2.3
5.2	5.2
2.6	2.9
3.2	3.7
4.6	5.5
3.5	4.6
4.6	5.8
4.1	5.9
5.6	7.7
