| NAESX | SIVIX | NAESX / SIVIX | |
| Total Expense Ratio | 0.17 | 0.75 | 23% |
| Annual Report Gross Expense Ratio | 0.17 | 0.89 | 19% |
| Fund Existence | 65 years | 27 years | - |
| Gain YTD | 2.409 | -4.485 | -54% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 3000 | 10000000 | 0% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 162B | 484M | 33,471% |
| Annual Yield % from dividends | 1.22 | 0.85 | 144% |
| Returns for 1 year | -0.86 | -15.88 | 5% |
| Returns for 3 years | 29.99 | -5.52 | -543% |
| Returns for 5 years | 39.31 | -9.12 | -431% |
| Returns for 10 years | 122.07 | -7.85 | -1,555% |