| NTBAX | NTBIX | NTBAX / NTBIX | |
| Total Expense Ratio | 1.28 | 1.03 | 124% |
| Annual Report Gross Expense Ratio | 1.30 | 1.05 | 124% |
| Fund Existence | 12 years | 12 years | - |
| Gain YTD | 1.934 | 2.168 | 89% |
| Front Load | 4% | N/A | - |
| Min. Initial Investment | 5000 | 25000 | 20% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 7.14B | 7.14B | 100% |
| Annual Yield % from dividends | 3.87 | 4.12 | 94% |
| Returns for 1 year | 4.80 | 5.18 | 93% |
| Returns for 3 years | 17.51 | 18.41 | 95% |
| Returns for 5 years | 9.00 | 10.46 | 86% |
| Returns for 10 years | 29.90 | 33.24 | 90% |