| NSRIX | RWIEX | NSRIX / RWIEX | |
| Total Expense Ratio | 0.29 | 0.76 | 38% |
| Annual Report Gross Expense Ratio | 0.29 | 0.76 | 38% |
| Fund Existence | 18 years | 23 years | - |
| Gain YTD | 20.282 | 23.416 | 87% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 250 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 1.96B | 144B | 1% |
| Annual Yield % from dividends | 1.33 | 1.35 | 98% |
| Returns for 1 year | 12.41 | 15.02 | 83% |
| Returns for 3 years | 65.82 | 56.15 | 117% |
| Returns for 5 years | 73.35 | 47.80 | 153% |
| Returns for 10 years | 170.51 | 86.00 | 198% |