| NBMTX | PMBJX | NBMTX / PMBJX | |
| Total Expense Ratio | 0.93 | 0.78 | 119% |
| Annual Report Gross Expense Ratio | 0.93 | 0.78 | 119% |
| Fund Existence | 32 years | 25 years | - |
| Gain YTD | 2.116 | -2.953 | -72% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | 1000 | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 1.99B | 30.3B | 7% |
| Annual Yield % from dividends | 0.00 | 0.00 | - |
| Returns for 1 year | -17.48 | -11.50 | 152% |
| Returns for 3 years | 5.80 | 20.26 | 29% |
| Returns for 5 years | -30.09 | 11.44 | -263% |
| Returns for 10 years | 37.33 | 114.81 | 33% |