By 2006 the black proportion of the population had decreased to just 24%.

The relative proportion of 13C in our atmosphere is steadily decreasing over time.

By 2005, the proportion of Christian residents had decreased dramatically, to about 40% from 50%.

However this proportion has decreased by 1.1% from the 2001 figure.

"The proportion of cases going to trial has decreased a lot in the past 15 years," she said.

The proportion of residents who needed to agree to the move decreased to 90% and later to 80%.

At the same time, the proportion going to low-income students has decreased.

Yet only 7 % of the unemployed are undergoing training, and this proportion is actually decreasing.

As everything gets more expensive, the proportion of costs paid by students and their parents decreases.

In addition, the report said, the proportion of children with private coverage decreased every year from 1989 to 1994.