| 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 | 24.369 | 15.734 | 155% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 250 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 41.8B | 159B | 26% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 14.87 | 10.60 | 140% |
| Returns for 3 years | 72.19 | 43.13 | 167% |
| Returns for 5 years | 35.08 | 22.04 | 159% |
| Returns for 10 years | 101.01 | 78.42 | 129% |