| NPFCX | PRGSX | NPFCX / PRGSX | |
| Total Expense Ratio | 1.47 | 0.81 | 181% |
| Annual Report Gross Expense Ratio | 1.47 | 0.81 | 181% |
| Fund Existence | 25 years | 31 years | - |
| Gain YTD | 4.931 | 20.299 | 24% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 2500 | 10% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 170B | 8.68B | 1,958% |
| Annual Yield % from dividends | 0.33 | 0.12 | 271% |
| Returns for 1 year | 6.26 | 22.76 | 28% |
| Returns for 3 years | 30.32 | 54.58 | 56% |
| Returns for 5 years | 8.52 | 16.06 | 53% |
| Returns for 10 years | 96.35 | 205.96 | 47% |