| NAESX | PSSIX | NAESX / PSSIX | |
| Total Expense Ratio | 0.17 | 0.21 | 81% |
| Annual Report Gross Expense Ratio | 0.17 | 0.25 | 68% |
| Fund Existence | 66 years | 25 years | - |
| Gain YTD | 15.016 | 19.553 | 77% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 183B | 1.38B | 13,309% |
| Annual Yield % from dividends | 1.08 | 1.08 | 100% |
| Returns for 1 year | 27.41 | 22.85 | 120% |
| Returns for 3 years | 51.49 | 24.18 | 213% |
| Returns for 5 years | 32.15 | -8.06 | -399% |
| Returns for 10 years | 168.37 | 44.41 | 379% |