| NAESX | NSIDX | NAESX / NSIDX | |
| Total Expense Ratio | 0.17 | 0.10 | 170% |
| Annual Report Gross Expense Ratio | 0.17 | 0.16 | 106% |
| Fund Existence | 66 years | 27 years | - |
| Gain YTD | 18.339 | 22.495 | 82% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 183B | 1.62B | 11,296% |
| Annual Yield % from dividends | 1.10 | 0.90 | 123% |
| Returns for 1 year | 24.75 | 33.74 | 73% |
| Returns for 3 years | 58.17 | 60.04 | 97% |
| Returns for 5 years | 42.07 | 19.23 | 219% |
| Returns for 10 years | 156.41 | 75.96 | 206% |