For teachers. This answer key isn't linked from the students' page or worksheet; keep this link to yourself or share it with colleagues. Its numbers are the charts' current data, so they match what students see today.

Students' assignment Worksheet

Answer key · for teachers

Charts to read and discuss

Figures as of November 12, 2026, from each chart's current data.

Chart 1 of 2 · Food and drug safety

How many food recalls are for undeclared allergens each year?

The chart's answer: 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.

Key numbers (Food recalls for undeclared allergens)

Questions

  1. In one sentence of your own, what does this chart show?

    Open question: answers will vary. Look for answers that use the chart's numbers and source.

  2. Find the biggest change or difference in the chart. What might explain it?

    • 2013 to 2025: up 36 (+23%)
    • Biggest rise from one point to the next: 40, 2022 to 2023
    • Biggest drop from one point to the next: 78, 2018 to 2019
  3. Who collected these numbers, and how recent are they? What else would you want to know before drawing a conclusion?

    • Newest: 190 in 2025
    • Source: U.S. Food and Drug Administration, Enforcement Reports (openFDA food recall data), data as of November 4, 2026

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 · chart.ly/charts/food-allergen-recalls-per-year

Chart 2 of 2 · Wealth

How is U.S. household wealth divided?

The chart's answer: At the end of June 2026, the wealthiest 1% of U.S. households held 32.5% of all household wealth, the next 9% held 36.4%, the next 40% held 28.8% and the bottom 50% held 2.3%. In 1989 the shares were 22.8%, 38.0%, 35.7% and 3.5%. Wealth here is net worth: what households own (homes, stocks and mutual funds, pensions and retirement accounts, private businesses, cars and other belongings, bank deposits) minus what they owe (mortgages, credit cards, student and car loans). The Fed estimates each quarter by combining its Financial Accounts with its Survey of Consumer Finances, taken every three years, so the newest quarters are estimates that get revised.

Key numbers (Share of household wealth, %)

Questions

  1. Which group holds the largest share of wealth? Is it the group with the most households?

    • Highest: 36.4% (Next 9%)
  2. If wealth were split evenly, what share would the bottom 50% hold? How far is the chart from that?

    • Bottom 50%: 2.3%
  3. The takeaway gives the 1989 shares too. Which groups gained a share since then, and which lost one?

    Open question: answers will vary. Look for answers that use the chart's numbers and source.

Source: Federal Reserve Board, Distributional Financial Accounts (Public domain (Federal Reserve Board; cite the Board as the source)) · Data as of Jun 30, 2026 · chart.ly/charts/how-us-wealth-is-divided

More free charts and assignments at chart.ly/teachers