Index Archive

Portion of South Koreans who say they would support North Korea in a war with Japan

: 1/2

Estimated number of drones that governments worldwide will purchase in the next decade for combat use

: 1,800

For surveillance use

: 75,000

Percentage of nonmilitary drones for sale in the United States that were manufactured in China

: 80

Minimum number of products that are available for purchase on Amazon

: 500,000,000

Estimated percentage of New York City apartments that receive at least one package every day

: 15

Minimum number of contractors employed by Google to evaluate the usefulness of search results

: 10,000

Number of changes that Google made to its search algorithm and interface in 2018

: 3,234

Portion of U.S. voting precincts that rely on electronic voting machines that leave no paper trail

: 1/10

Number of U.S. states that use a mobile voting app

: 1

Percentage of American men who say they would not feel “very comfortable” with a woman as president

: 51

Of American women who say so

: 41

Estimated number of Americans who have lost a friend or family member since 2014 because health care was too costly

: 34,000,000

Factor by which this is more likely to be true of a Democrat than a Republican

: 3

Factor by which the amount a U.S. insurer pays for a flu shot can vary depending on where it is administered

: 3

Factor by which an American adult is more likely to go out of network for mental health care than for medical care

: 5

Estimated percentage of Americans who have an autoimmune disease

: 15

Who can name an autoimmune disease

: 15

Percentage of unemployed Americans receiving unemployment benefits in 2000

: 37

In 2018

: 28

Estimated value of extra expenses that an average American household incurs as a result of oligopolies

: $5,000

Percentage of civil defendants in U.S. general-jurisdiction courts who had lawyers in 1992

: 95

Who have lawyers today

: 46

Of Mexico

: 2

Number of refugees resettled in the United States in October

: 0

Number of countries in which the annual number of tourists outnumbers residents

: 41

Percentage of Americans aged 13 to 38 who would be willing to post sponsored content to their social-media accounts

: 86

Who would become a social-media influencer if given the opportunity

: 54

Factor by which the number of social-media influencers using the word “anxiety” increased from 2016 to 2019

: 3

Minimum number of apps that promise to help people find friend

: 22

Percentage of Americans with siblings who think their mother has a favorite child

: 33

Percentage of those Americans who believe they are the favorite

: 30

Factor by which men are more likely than women to believe they are the favorite

: 2

Percentage of Americans aged 18 to 34 who say they have witnessed ageism in the workplace

: 52

Of Americans aged 55 and older

: 39

Number of pending patent applications for variations of the phrase “OK, Boomer”

: 6

Harper’s Index

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