The line graph below shows changes in the amount and type of fast food consumed by Australian teenagers from 1975 to 2000.

The given line chart shows the fast food consumption of

Australian

juveniles in the period from 1975 to 2000. The data is sorted by three fast food types: pizza,

fish

and

chips

, and

hamburgers

.

Overall

,

fish

and

chips

dominated the fast food market before 1985,

then

it was surpassed by

hamburgers

. Looking into details, it could be seen that frequency that

Australian

teens ate

hamburgers

yearly was almost over 10

times

in 1975, and

this

number

kept rapidly increasing till 1985, representing over 80

times

per

year

. After that, the

number

of

times

that

Australian

young students ate

hamburgers

grew sluggishly till 2000, peaking at approximately 100

times

per

year

.

Likewise

,

this

period witnessed a relatively similar increasing pattern in the consumption of pizza. In 1975, the

number

of pizza consumption among

Australian

juveniles was less than 5

times

a

year

, and it continuously went upward till 1995, with teenagers eating more than 80

times

per

year

.

Additionally

,

this

amount remained stable at over 80

times

in 2000.

Furthermore

, the figure for

times

that teens ate

fish

and

chips

per

year

generally dropped throughout

this

period.

Initially

, the frequency that students ate

fish

and

chips

in 1975 was 100

times

.

Then

, there was a fluctuation between 1975 and 1985, with the lowest

number

at over 80

times

per

year

in 1980;

however

, the frequency began to decrease till 2010 when teens ate

fish

and

chips

less than 40

times

per

year

.