| 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 | 28.951 | 20.449 | 142% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 250 | 250 | 100% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 43.7B | 165B | 26% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | 15.44 | 13.49 | 114% |
| Returns for 3 years | 76.23 | 47.67 | 160% |
| Returns for 5 years | 40.66 | 28.64 | 142% |
| Returns for 10 years | 114.72 | 91.17 | 126% |