| NBFAX | NPFCX | NBFAX / NPFCX | |
| Total Expense Ratio | 1.35 | 1.48 | 91% |
| Annual Report Gross Expense Ratio | 1.35 | 1.48 | 91% |
| Fund Existence | 29 years | 25 years | - |
| Gain YTD | 22.144 | 20.449 | 108% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 250 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 833M | 165B | 1% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 19.71 | 13.49 | 146% |
| Returns for 3 years | 77.40 | 47.67 | 162% |
| Returns for 5 years | 22.94 | 28.64 | 80% |
| Returns for 10 years | -26.81 | 91.17 | -29% |