immegration

this graphic show me the immigration coming to Australia in 1992 and 2002 the green line show the people in north american go up from 1,730 up to 30,000. and the ocean  immigration to Australia in   1992 was 10362 but in 2002 go up to 19152 . the  south &central start in 1992 in 900 but the number go up to 19,152 and after go down  to 10,000 and after it is go up again