Exhibit 15
Texas and High Plains Population by Age, 2007
| Age | High Plains | Texas |
|---|---|---|
| Under 5 years | 8.1% | 8.5% |
| 5-9 years | 7.3% | 7.6% |
| 10-19 years | 14.8% | 14.5% |
| 20-24 years | 8.7% | 7.5% |
| 25-44 years | 25.2% | 28.7% |
| 45-64 years | 23.3% | 23.2% |
| 65 years and over | 12.5% | 10.1% |
Source: Economic Modeling Specialists Inc.