By the mid-1970s, wages for black and white women were almost equal; however, since then, black women's wages have decreased about 10 percent relative to white women's wages.
1970年代中期时，黑人和白人女性的薪水几乎是相等的，但自那以后，黑人女性的工资与白人女性相比差距已经扩大到10个百分点。