| 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 | 15.738 | 21.490 | 73% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 189B | 1.35B | 13,990% |
| Annual Yield % from dividends | 1.07 | 1.05 | 102% |
| Returns for 1 year | 23.34 | 19.47 | 120% |
| Returns for 3 years | 48.12 | 23.91 | 201% |
| Returns for 5 years | 38.39 | -1.41 | -2,725% |
| Returns for 10 years | 157.36 | N/A | - |