| 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 | 13.680 | 17.582 | 78% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 2500 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 177B | 1.62B | 10,926% |
| Annual Yield % from dividends | 1.08 | 0.90 | 120% |
| Returns for 1 year | 28.95 | 41.52 | 70% |
| Returns for 3 years | 54.86 | 55.77 | 98% |
| Returns for 5 years | 33.38 | 9.09 | 367% |
| Returns for 10 years | 160.50 | 81.71 | 196% |