Line Graphs - IELTS Academic - Writing task 1

In IELTS Writing Task 1, you have to summarise information which is presented in a visual form. There are a few forms you can come across - a line graph is one of them. This type of figure can be used to show trends. The horizontal axis often indicates time, and the vertical axis often shows  changes  over time.

Look at the example of a line graph presenting CPI (consumer price index) Inflation in Polad in 2018.
Remember you should spend about 20 minutes on this task and write at least 150 words. 

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source: https://www.inflation.eu/inflation-rates/poland/historic-inflation/cpi-inflation-poland-2018.aspx 

In 2018 inflation in Poland fluctuated between  2.1% in January and reaching around 1.9% in December.

The first two months of the year marked a significant drop in CPI,  reaching its lowest point of 1.5%. The situation remained stable until March and then the inflation started to increase steadily until June, when it stood at nearly 2.2%.  Thereafter, the percentage fluctuated for two months. After reaching a high point in August, it began to decrease gradually, finally reaching almost 1.9%.

Overll, the graph shows the change in inflation in Poland during the period of 12 months, where the average inflation amounted to 1.81%.

How to write the task

Introduction
Paraphrase the instructions, try to use varied language - use synonyms.

Body
Focus on the main features. Don't describe all the points, describe the trend.
Use different forms. Don't use only numbers, give aproximates (e.g - nearly, almost). 
Use verbs of change: rise, increase, drop, fluctuate, remain stable
Use adverbs after verbs: increase steadily, decrease gradually
Use noun phrases: a significant drop,  a high point

Summary
Once again provide a short overview of the graph, use different forms than in the introduction

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