| NBFAX | NPFCX | NBFAX / NPFCX | |
| Total Expense Ratio | 1.33 | 1.47 | 90% |
| Annual Report Gross Expense Ratio | 1.33 | 1.47 | 90% |
| Fund Existence | 30 years | 25 years | - |
| Gain YTD | 8.698 | 8.960 | 97% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 250 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 857M | 166B | 1% |
| Annual Yield % from dividends | 0.07 | 0.33 | 22% |
| Returns for 1 year | 3.94 | 7.61 | 52% |
| Returns for 3 years | 55.69 | 38.32 | 145% |
| Returns for 5 years | 1.17 | 10.29 | 11% |
| Returns for 10 years | -21.25 | 99.09 | -21% |