| IIRSX | NAESX | IIRSX / NAESX | |
| Total Expense Ratio | 0.43 | 0.17 | 253% |
| Annual Report Gross Expense Ratio | 0.61 | 0.17 | 359% |
| Fund Existence | 18 years | 66 years | - |
| Gain YTD | 4.063 | 13.680 | 30% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 0 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 383M | 177B | 0% |
| Annual Yield % from dividends | 1.32 | 1.08 | 121% |
| Returns for 1 year | 25.69 | 28.95 | 89% |
| Returns for 3 years | 19.92 | 54.86 | 36% |
| Returns for 5 years | -14.65 | 33.38 | -44% |
| Returns for 10 years | 26.65 | 160.50 | 17% |