| NAESX | VSPRX | NAESX / VSPRX | |
| Total Expense Ratio | 0.17 | 0.79 | 22% |
| Annual Report Gross Expense Ratio | 0.17 | 0.79 | 22% |
| Fund Existence | 65 years | 10 years | - |
| Gain YTD | 6.726 | -8.895 | -76% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 162B | 197M | 82,234% |
| Annual Yield % from dividends | 1.22 | 1.10 | 111% |
| Returns for 1 year | 1.42 | -14.34 | -10% |
| Returns for 3 years | 33.14 | 10.86 | 305% |
| Returns for 5 years | 48.22 | -10.48 | -460% |
| Returns for 10 years | 137.58 | N/A | - |