Chart assignment

Charts to read and discuss

Read each chart, then answer its questions. Every chart shows its source and date; open it for a table of the numbers and the data to download.

  1. How many food recalls are for undeclared allergens each year?
  2. How has the world's population grown since 1960?
  3. What share of people use the internet in each country?

Printable worksheet each chart with its source, date and space to write answers

Chart 1 of 3 · Food and drug safety

How many food recalls are for undeclared allergens each year?

The interactive chart needs JavaScript. The numbers are on the chart's page.

The FDA classified 190 food recalls in 2025 for an allergen left off the label, such as milk, peanuts, tree nuts, wheat, soy, eggs, fish, shellfish or sesame; the most since 2013 was 282 in 2017. From 2013 through 2025, undeclared allergens were the most common reason food was recalled. A recall counts once however many products it covers, in the year FDA first listed it in its weekly Enforcement Report. Chartly sorted FDA's written reasons by their key words; a recall for a germ as well counts under the germ. Meat, poultry and most egg products are USDA's to recall and aren't included. The newest allergen recalls, this year's included, are listed below.

Questions to discuss

  1. In one sentence of your own, what does this chart show?
  2. Find the biggest change or difference in the chart. What might explain it?
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

Source: U.S. Food and Drug Administration, Enforcement Reports (openFDA food recall data) (Public domain (U.S. government work); source U.S. Food and Drug Administration, openFDA) · Data as of Nov 4, 2026

Open the chart and its numbers
Cite this chart (MLA, APA, Chicago)

  • MLA

    “How Many Food Recalls Are for Undeclared Allergens Each Year?” Chartly, 4 Nov. 2026, chart.ly/charts/food-allergen-recalls-per-year. Accessed 12 Nov. 2026.

  • APA

    Chartly. (2026, November 4). How many food recalls are for undeclared allergens each year? [Chart]. Retrieved November 12, 2026, from https://chart.ly/charts/food-allergen-recalls-per-year

  • Chicago

    Chartly. “How Many Food Recalls Are for Undeclared Allergens Each Year?” Chart. Data from U.S. Food and Drug Administration, Enforcement Reports (openFDA food recall data). Updated November 4, 2026. Accessed November 12, 2026. https://chart.ly/charts/food-allergen-recalls-per-year.

Chart 2 of 3 · World

How has the world's population grown since 1960?

The interactive chart needs JavaScript. The numbers are on the chart's page.

The world had 8.22 billion people in 2025, about 2.7 times the 3.02 billion of 1960. It passed 8 billion in 2023. Figures are mid-year estimates from the United Nations, which revises them as new censuses come in.

How to read this chart

Each point is the number of people alive in the world in the middle of that year, estimated by the United Nations. The axis starts at zero, so the height of the line shows the true size. Look at how steep the line is to see how fast the population grew.

Questions to discuss

  1. Judging from the chart, about how many years did it take the world to add its most recent billion people?
  2. Is the line getting steeper or flatter in recent years? What does that tell you about the growth rate?
  3. These numbers are estimates that the UN revises. Why is it hard to count every person on Earth?

Source: World Bank, World Development Indicators: Population, total (CC BY 4.0 (credit the World Bank)) · Data as of Dec 31, 2025

Open the chart and its numbers
Cite this chart (MLA, APA, Chicago)

  • MLA

    “How Has the World's Population Grown Since 1960?” Chartly, 31 Dec. 2025, chart.ly/charts/world-population. Accessed 12 Nov. 2026.

  • APA

    Chartly. (2025, December 31). How has the world's population grown since 1960? [Chart]. Retrieved November 12, 2026, from https://chart.ly/charts/world-population

  • Chicago

    Chartly. “How Has the World's Population Grown Since 1960?” Chart. Data from World Bank, World Development Indicators: Population, total. Updated December 31, 2025. Accessed November 12, 2026. https://chart.ly/charts/world-population.

Chart 3 of 3 · World

What share of people use the internet in each country?

The interactive chart needs JavaScript. The numbers are on the chart's page.

In 2024, 94.7% of people in the United States used the internet and 64.9% in India. The highest share was 100%, and the lowest 8.6%, in Burundi. 182 countries and territories had a 2024 figure. It counts people who used the internet at least once in the previous three months; places without a 2024 figure are left out.

How to read this chart

Each bar is the share of a country's people who used the internet in the previous three months. The dashed line is the whole world. The chart opens on the top and bottom of the ranking; search for a country to find its bar among the rest.

Questions to discuss

  1. Find the United States and one country on another continent. How far apart are their shares?
  2. What do the countries at the bottom of the ranking have in common? What might keep people there offline?
  3. The world figure is closer to the bottom than many rich countries are to the top. Why might that be?

Source: World Bank, World Development Indicators: Individuals using the Internet (% of population) (CC BY 4.0 (credit the World Bank)) · Data as of Dec 31, 2024

Open the chart and its numbers
Cite this chart (MLA, APA, Chicago)

  • MLA

    “What Share of People Use the Internet in Each Country?” Chartly, 31 Dec. 2024, chart.ly/charts/internet-use-by-country. Accessed 12 Nov. 2026.

  • APA

    Chartly. (2024, December 31). What share of people use the internet in each country? [Chart]. Retrieved November 12, 2026, from https://chart.ly/charts/internet-use-by-country

  • Chicago

    Chartly. “What Share of People Use the Internet in Each Country?” Chart. Data from World Bank, World Development Indicators: Individuals using the Internet (% of population). Updated December 31, 2024. Accessed November 12, 2026. https://chart.ly/charts/internet-use-by-country.

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