| 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 | 5.519 | 3.331 | 166% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 162B | 198M | 81,818% |
| Annual Yield % from dividends | 1.16 | 1.06 | 110% |
| Returns for 1 year | 10.68 | -7.06 | -151% |
| Returns for 3 years | 33.00 | 6.66 | 495% |
| Returns for 5 years | 31.77 | -21.79 | -146% |
| Returns for 10 years | 185.98 | -8.67 | -2,145% |