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The line graph illustrates the amount of fish and three kinds of meat (lamb, beef and chicken), which one person consume weekly over the period of 25 years from 1979 to 2004. Units are measured in grams.
Overall, the consumption of beef and lamb declined significantly, for fish, it was stable, and for chicken, it rose over the given period. At the beginning of the period, people mostly consume beef which was replaced by chicken between 1989 and 1991. Although the second popular meat was lamb in 1979, it was soon replaced by chicken in 1980.
With regards to the amount of chicken used, it began at below 150 grams and reached around 250 grams in 2004. In contrast, the beef consumption was above 200 grams and after fluctuating for some years it began to drop and at the end of the period was around 100 grams. Likewise, 150 grams of lamb was eaten in 1989 which was followed by continuous decline of demand towards this kind of meat and finally its consumption was around 60 grams in 2004. Unlike the meat, the consumption of fish was stable at approximately 50 grams over the given period.

Hello!

Overall, not bad, but you have simplified the graph too much and missed important details, such as the fact that fish consumption is not stable over the whole period.

Grammar is reasonable, despite many mistakes, and vocabulary is good enough.

All the best,
David

Thank you very much for the comments.

I have a question to you. Do I need to write that fish consumption was above 50 grams and decreased slightly with small fluctuations during the whole period?