| NPRTX | RMFEX | NPRTX / RMFEX | |
| Total Expense Ratio | 0.75 | 0.62 | 121% |
| Annual Report Gross Expense Ratio | 0.75 | 0.62 | 121% |
| Fund Existence | 52 years | 24 years | - |
| Gain YTD | 19.631 | 9.303 | 211% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000 | 250 | 400% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 10.1B | 118B | 9% |
| Annual Yield % from dividends | 1.28 | 1.42 | 90% |
| Returns for 1 year | 27.10 | 9.23 | 294% |
| Returns for 3 years | 51.75 | 36.13 | 143% |
| Returns for 5 years | 51.14 | 39.39 | 130% |
| Returns for 10 years | 154.78 | 99.14 | 156% |