| NAESX | PSPIX | NAESX / PSPIX | |
| Total Expense Ratio | 0.17 | 0.17 | 100% |
| Annual Report Gross Expense Ratio | 0.17 | 0.17 | 100% |
| Fund Existence | 66 years | 10 years | - |
| Gain YTD | 18.339 | 22.996 | 80% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 183B | 1.33B | 13,770% |
| Annual Yield % from dividends | 1.10 | 1.07 | 103% |
| Returns for 1 year | 24.75 | 19.63 | 126% |
| Returns for 3 years | 58.17 | 29.84 | 195% |
| Returns for 5 years | 42.07 | -0.09 | -45,215% |
| Returns for 10 years | 156.41 | N/A | - |