Index Archive

Number of different forms of torture the Syrian government is suspected of having used during the country’s civil war

: 72

Factor by which women are more likely than men to develop P.T.S.D. over the course of their lives

: 2.5

Average penalty, in lost vacation days, for N.Y.P.D. officers the department finds to have committed domestic violence

: 30

For officers the department finds to have been discourteous to a supervisor

: 60

Rank of 2018 among the deadliest years since 1990 for cyclists in the United States

: 1

For pedestrians

: 1

Percentage of Uber riders who never tip

: 60

Who always tip

: 1

Percentage by which male riders give higher tips to female drivers than to male drivers

: 12

Value of the personal possessions that the average American lost while drinking alcohol last year

: $192

That the average North Dakotan lost

: $380

Percentage by which new plastic was more expensive than recycled plastic in 2018

: 20

By which recycled plastic is now more expensive

: 19

Number of grams of plastic that the average person ingests per week

: 5

Percentage of U.S. gamers who say they have skipped a meal to continue playing video games

: 38

Who say they have skipped a shower

: 25

Average number of minutes that teens in households making $100,000 or more per year spend on screens for leisure each day

: 409

That teens in households making $35,000 or less per year do

: 512

Chance that a millennial has voluntarily left a job for mental-health reasons

: 1 in 3

That a Gen Z-er has

: 1 in 2

Percentage of U.S. schools that have at least one police officer stationed inside a school building

: 40

Factor by which U.S. public school districts’ spending on email-monitoring services has increased since 2013

: 2

Minimum number of U.S. colleges and universities that track prospective students’ web activity

: 33

Minimum number of states that use artificial intelligence to grade student essays

: 21

Estimated number of people who could go unaccounted for in the 2020 census because of an “increased climate of fear”

: 4,000,000

Minimum number of polling places that states in the South have closed since 2012

: 1,327

Portion of those that were in Texas

: 1/2

Percentage of Republicans who regard the Democratic party as “too extreme”

: 76

Of Democrats who regard the Republican party as such

: 76

Average effective tax rate, as a percentage of income, paid by the richest 400 households in the United States in 2018

: 23

By the poorest half of American households

: 24

Percentage of all public tweets from U.S. adults that come from people 50 and older

: 29

Percentage of public political tweets that do

: 73

Percentage of white Americans who say they follow local news very closely

: 28

Of black Americans

: 46

Portion of new digital New York Times subscriptions in 2018 that were for its cooking or crossword app

: 1/3

Percentage by which owning a dog lowers one’s risk of death

: 24

Number of states expected to lose the majority of their summer state-bird populations by 2050

: 7

Harper’s Index

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