| Percent of high school dropouts among Americans ages 16 to 24 years old | |
|---|---|
| 1960 | 27.2 |
| 1970 | 15 |
| 1980 | 14.1 |
| 1990 | 12.1 |
| 2000 | 10.9 |
| 2010 | 7.4 |
Sources:
nces.ed.gov

| Percent of high school dropouts among Americans ages 16 to 24 years old | |
|---|---|
| 1960 | 27.2 |
| 1970 | 15 |
| 1980 | 14.1 |
| 1990 | 12.1 |
| 2000 | 10.9 |
| 2010 | 7.4 |
Dropout rates are on the decline, but what's the main cause? Is it because there are more incentives to get a degree -- like the ability to get a good job? Or can we attribute the decrease to improvements in the education system?