1989  10.3  31.0   4.3   7.4
 1990  46.5  55.7  36.4  63.4
 1991  16.3  54.8   7.2   5.8
 1992   8.3  29.5   3.2   2.6
 1993  11.9  41.2   5.3   3.3
 1994  69.1  92.9  64.0  61.3
 1995  13.1  52.1   3.2   4.3