| NPFFX | RNPFX | NPFFX / RNPFX | |
| Total Expense Ratio | 0.78 | 0.46 | 170% |
| Annual Report Gross Expense Ratio | 0.78 | 0.46 | 170% |
| Fund Existence | 25 years | 24 years | - |
| Gain YTD | 16.461 | 16.763 | 98% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 250 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 159B | 159B | 100% |
| Annual Yield % from dividends | 0.43 | 0.69 | 63% |
| Returns for 1 year | 11.68 | 12.05 | 97% |
| Returns for 3 years | 46.15 | 47.14 | 98% |
| Returns for 5 years | 26.94 | 28.33 | 95% |
| Returns for 10 years | 87.67 | 90.02 | 97% |