The two pie charts illustrate the proportion of graduate income after graduating one year in 1987 and 2007.
Overall, the rate of graduates who were paid higher than national average was highest whilst the figure for jobless made up the least of the total in both two years.
Looking into more details, the proportion of graduates without work accounted for 11%; however, this figure dipped notably to 3% in 2007. Furthermore, a considerable decline was seen at the number of graduates who got paid twice as much as the national average, from 18% in 1987 to 5% in 2007.
On the other hand, the rate of graduates with earnings less than the national average was roughly doubled from a quarter to more than two-fifths after two decades. Moreover, graduates with higher revenue than the national average occupied 46% in 1987, then there was a slight growth to 47% in 2007. 
The two pie charts illustrate the proportion of  
graduate
 income after graduating one year in 1987 and 2007. 
Overall
, the rate of  
graduates
 who  
were paid
 higher than  
national
  average
 was highest whilst the figure for jobless made up the least of the total in both two years.
Looking into more  
details
, the proportion of  
graduates
 without work accounted for 11%;  
however
, this figure dipped  
notably
 to 3% in 2007.  
Furthermore
, a considerable decline was  
seen
 at the number of  
graduates
 who  
got
 paid twice as much as the  
national
  average
, from 18% in 1987 to 5% in 2007. 
On the other hand
, the rate of  
graduates
 with earnings less than the  
national
  average
 was roughly doubled from a quarter to more than two-fifths after two decades.  
Moreover
,  
graduates
 with higher revenue than the  
national
  average
 occupied 46% in 1987, then there was a slight growth to 47% in 2007.