| NAESX | PRSVX | NAESX / PRSVX | |
| Total Expense Ratio | 0.17 | 0.79 | 22% |
| Annual Report Gross Expense Ratio | 0.17 | 0.79 | 22% |
| Fund Existence | 66 years | 38 years | - |
| Gain YTD | 16.678 | 21.932 | 76% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 183B | 10.5B | 1,743% |
| Annual Yield % from dividends | 1.07 | 0.65 | 164% |
| Returns for 1 year | 23.82 | 18.28 | 130% |
| Returns for 3 years | 54.05 | 29.61 | 183% |
| Returns for 5 years | 37.14 | 4.90 | 757% |
| Returns for 10 years | 164.33 | 65.17 | 252% |