| NPFFX | RNPEX | NPFFX / RNPEX | |
| Total Expense Ratio | 0.77 | 0.75 | 103% |
| Annual Report Gross Expense Ratio | 0.77 | 0.75 | 103% |
| Fund Existence | 26 years | 24 years | - |
| Gain YTD | 7.201 | 7.215 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 250 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 169B | 169B | 100% |
| Annual Yield % from dividends | 0.92 | 0.93 | 99% |
| Returns for 1 year | 5.70 | 5.65 | 101% |
| Returns for 3 years | 41.04 | 40.90 | 100% |
| Returns for 5 years | 11.26 | 11.06 | 102% |
| Returns for 10 years | 110.45 | 109.66 | 101% |