The line graph gives information of the tools levels of the key kinds of fuel in the UK , from 1981 to next 19 years .
Overall , Petroleum was the biggest fuels in all this period , while Natural gas was a lowest fuels , however started rise sharply in the end of period . In additinal , Coal began from middle point , but declined slighly .
In 1981, the petroleum grew dramaticly from 90 to 140 until 1984 , remained statiс the next 3 years . Moreover , went down remarkably to 100 from 1987 to 1990 . Then , in the next 2 years increase steadly to 105 and began exceed rapidly back to 140 till 1996 . in 1996 and 1998 , stayed the same and reached a peak in 1999 . Then , fell slowly in the end of period . While , the natural gas was constant around 40 from 1981 to 1990. Therefore , started rise signiticantly to 40 by the 1995 . The next year, it was stable and in 1997 countined increased gradudly up to 1998 . In 1998 and 1999, was constant and rised slighly in 2000 .
Coal stayed static apporximatly 80 from 1981 to 1883 . Then , deareased sharply to 38 up to 1993 , in the next 3 years went up steadly to 60 and stayed the same till 1989 . Following this, it fluctuated slowly but at the same time went down by the 1996 from 60 to 40 . And in the end of period ,declined steadly to 30