| NAESX | PRVIX | NAESX / PRVIX | |
| Total Expense Ratio | 0.17 | 0.67 | 25% |
| Annual Report Gross Expense Ratio | 0.17 | 0.67 | 25% |
| Fund Existence | 66 years | 11 years | - |
| Gain YTD | 13.680 | 15.929 | 86% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 500000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 177B | 10.1B | 1,752% |
| Annual Yield % from dividends | 1.08 | 0.87 | 124% |
| Returns for 1 year | 28.95 | 20.15 | 144% |
| Returns for 3 years | 54.86 | 26.37 | 208% |
| Returns for 5 years | 33.38 | -1.57 | -2,127% |
| Returns for 10 years | 160.50 | 61.27 | 262% |