| 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 | 15.738 | 21.003 | 75% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 500000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 189B | 10.4B | 1,817% |
| Annual Yield % from dividends | 1.07 | 0.83 | 129% |
| Returns for 1 year | 23.34 | 17.85 | 131% |
| Returns for 3 years | 48.12 | 25.19 | 191% |
| Returns for 5 years | 38.39 | 4.99 | 769% |
| Returns for 10 years | 157.36 | 60.80 | 259% |