| FIXIX | NTKLX | FIXIX / NTKLX | |
| Total Expense Ratio | 0.95 | 1.53 | 62% |
| Annual Report Gross Expense Ratio | 0.95 | 1.55 | 61% |
| Fund Existence | 23 years | 32 years | - |
| Gain YTD | 8.252 | 12.760 | 65% |
| Front Load | N/A | 6% | - |
| Min. Initial Investment | 0 | 1000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 5.32B | 581M | 915% |
| Annual Yield % from dividends | 3.02 | 1.29 | 235% |
| Returns for 1 year | 9.34 | 10.04 | 93% |
| Returns for 3 years | 45.92 | 64.31 | 71% |
| Returns for 5 years | 25.05 | 23.64 | 106% |
| Returns for 10 years | 84.66 | 99.01 | 85% |