1991 4.7

1991 4.5

1991 5.9

1991 5.4

1990 6.4

1990 6.3

1990 5.8

1990 7.5

1990 6.6

1990 7.5

1990 5.9

1990 3.3

1990 6.1

1990 5.5

1990 5.1

1990 4.3

1990 2.9

1990 6.8

1990 6.2

1990 6.0