The chart depicts the proportion of adult population who were underweight in four different countries in 1980,1990 and 2000.
In general, Japan lacks the overweight adults while other countries population of overweight increases rapidly every decades.
Basically, Japan remains constant during 1980 and 1990 while during 2000. it suffers through slight increase accounted to less than 5% in contrast. during three decades Finland teenagers overweight follows upward trend, until 2000 reaches to 13%.
Although, initially Australia and Finland follows similar graph later on until 2000 the graph peaks up to 20%. similarly USA takes the lead in every decades until 2000. it stands out at the top accounted to 33%.