| NPFFX | RNPEX | NPFFX / RNPEX | |
| Total Expense Ratio | 0.77 | 0.75 | 103% |
| Annual Report Gross Expense Ratio | 0.77 | 0.75 | 103% |
| Fund Existence | 25 years | 24 years | - |
| Gain YTD | 7.272 | 7.273 | 100% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 250 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 166B | 166B | 100% |
| Annual Yield % from dividends | 0.94 | 0.95 | 99% |
| Returns for 1 year | 7.23 | 7.17 | 101% |
| Returns for 3 years | 43.64 | 43.47 | 100% |
| Returns for 5 years | 14.68 | 14.48 | 101% |
| Returns for 10 years | 107.80 | 106.93 | 101% |