| CNGFX | NPFCX | CNGFX / NPFCX | |
| Total Expense Ratio | 0.85 | 1.48 | 57% |
| Annual Report Gross Expense Ratio | 0.85 | 1.48 | 57% |
| Fund Existence | 23 years | 25 years | - |
| Gain YTD | 27.639 | 18.359 | 151% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 250 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 43.3B | 163B | 27% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 14.57 | 10.43 | 140% |
| Returns for 3 years | 71.84 | 41.03 | 175% |
| Returns for 5 years | 34.37 | 19.80 | 174% |
| Returns for 10 years | 105.66 | 82.56 | 128% |