| NBIIX | RERFX | NBIIX / RERFX | |
| Total Expense Ratio | 0.85 | 0.52 | 163% |
| Annual Report Gross Expense Ratio | 1.03 | 0.52 | 198% |
| Fund Existence | 21 years | 24 years | - |
| Gain YTD | 4.213 | 4.100 | 103% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 250 | 400,000% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 1.01B | 141B | 1% |
| Annual Yield % from dividends | 1.17 | 2.73 | 43% |
| Returns for 1 year | 3.92 | 8.61 | 46% |
| Returns for 3 years | 25.73 | 19.63 | 131% |
| Returns for 5 years | -4.64 | -1.92 | 241% |
| Returns for 10 years | 51.24 | 48.82 | 105% |