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Thirteen charts that explain how Roe v. Wade changed abortion rights

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Wednesday marks the 41st anniversary of Roe v. Wade, the landmark Supreme Court decision that made abortion a legal right. The decision was transformational: Overnight, abortion went from being banned by all but a handful of states to being legal in all 50. Movements quickly built up in defense, and in opposition, of the ruling.

Forty-one years later, a lot has changed. While the Roe decision still stands, abortion opponents have made significant gains passing restrictions on abortion access. There are fewer abortion providers than there were in 1973 and fewer clinics. As Wonkblog did last year, we now provide an updated look at how the Roe decision changed abortion rights -- and what has happened since. 

The four maroon states legalized abortion in nearly all cases before the fetus was viable. The 14 pink states allowed abortions in some circumstances. Nearly all others continued to ban abortion in most cases.

2. Legal abortion rates increased significantly following the Roe decision but have declined for the past three decades. In 1973, Roe v. Wade legalized first-trimester, elective abortion and also gave some protections to terminations later in the pregnancy. Abortion rates climbed after the decision, a trend that had started in the late 1960s, as states began liberalizing their abortion laws.

The abortion rate has now been declining since the 1980s and hit an all-time low in 2010, the most recent year for which data is available.

3. Public opinion has always seen a big split on Roealthough it has fluctuated over time. Harris Interactive has polled the American public on the Roe decision since it happened. Here are their findings:

Roe saw its highest approval ratings in the early 1990s, right around when the Supreme Court issued another decision on abortion, Planned Parenthood v. Casey, which ruled that certain restrictions on abortion access, like waiting periods, were constitutional. The decision had the lowest appeal in 2006, the same time that Congress outlawed a late-term abortion procedure that came to be known as "partial birth abortion."

4. The number of abortion providers has declined steadily since the mid-1970s, although it looks to have held relatively steady in the late 2000s.

Ever since the early 1980s, the number of doctors performing abortions has steadily declined. A number of factors likely contribute to this trend, including state-level abortion restrictions (more on that later) and a wave of violence against abortion providers in the 1990s, when five were killed. The decrease in abortion providers has correlated with a decrease in the rate of abortions.

5. Abortion has become increasingly concentrated among low-income, minority women. Over the past four decades, the demographics of abortion have shifted significantly. In 1973, white women accounted for over three-quarters of all abortions. Now, that number hovers just below 60 percent.

The economic status of abortion patients has changed, too, shifting more toward lower income women.

6. A wave of abortion restrictions passed in 2011, followed by slightly fewer in 2012 and 2013. Roe provides widespread protections to elective abortions in the first trimester of pregnancy. But in later rulings, the Supreme Court has allowed states to restrict access to abortion. Since them, states have increasingly done so. In 2011, states passed 92 laws restricting abortion access, more than double the restrictions passed in any other year. The number dropped to 43 in 2012 and then rose to 70 in 2013. States lawmakers tend to be more willing to tackle controversial issues like abortion in off-election years.

7. Still, states have passed more abortion restrictions in the past three years than in all of the 2000s.

What made 2010 such a boom year for abortion restrictions? It's hard to pinpoint a particular reason, but a few factors do stand out. First, Republicans took control of lots of state legislatures in the 2010 midterm elections, allowing them to pass more restrictions than was politically feasible in the past. The Affordable Care Act also ignited a fight over abortion policy, particularly whether federal funds would help pay for abortions (when Americans used their tax subsidies to purchase health insurance coverage). That fight spilled over to state legislatures -- the ones that Republicans had recently come to control -- and many passed laws restricting insurance coverage of abortion.

8. And every state, except for Oregon, has at least one abortion restriction on the books.

The chart below, courtesy of Remapping Debate, has the full list. You can also go here for an interactive version of the graphic, which will let you look at what type of restrictions each state has set.

9. Most abortion restrictions target minors or focus on delaying the procedure with a waiting period. 

States have gravitated toward a handful of abortion restrictions that appear to pass muster with the Supreme Court. Waiting periods and parental notifications became more frequent in the 1990s, after the Supreme Court ruled that such restrictions did not represent an "undue burden" on the woman.

10. More recently, states have begun to focus on banning abortions after 20 weeks. In 2010, Nebraska passed the country's most restrictive abortion law that barred abortions after 20 weeks. By March 2013, 12 states had done so — or passed restrictions even earlier in the pregnancy, like North Dakota's six-week ban.

These are the states you see in orange, in this graphic below, which uses data from the Guttmacher Institute to map all the laws that ban later-term abortion in the United States. The slightly lighter states represent those where a ban exists but is not in effect, due to a pending legal challenge.

11. Research has found countries with more liberal abortion laws have lower abortion rates. How abortion restrictions affect abortion rates isn't completely clear. States with fewer abortion restrictions have tended to have higher abortion rates, in part because they include women traveling from out-of-state to terminate a pregnancy.

A recent study from the Guttmacher Institute, however, questions the role of restrictions. It found that countries with more liberal abortion laws tend to have lower rates of abortion -- perhaps due to factors like greater access to contraception.

That research, published in the Lancet, also found countries with more abortion restrictions to have higher rates of abortion-related deaths.

Related Reading

Roe at 40: "It's never been this frightening before."

- Roe at 40: "I don't want my children to have 40 more years of this."

- Interview: Why NARAL's Nancy Keenan stepped down to make way for a young leader

Surprise! The abortion rate just hit an all-time low.