| | | | 28 | | | | | | | | | | | 1996 | | | | | | | | | | | | | | | 2000 20 % 65 % | 15 | 21 | 30 50 | 55% | 8.7% 20.5% | | 2000 | 393.35 | 228.78 | 20 | | | | | | | | | | |