| MUBFX | RMFEX | MUBFX / RMFEX | |
| Total Expense Ratio | 0.70 | 0.62 | 113% |
| Annual Report Gross Expense Ratio | 0.77 | 0.62 | 124% |
| Fund Existence | 55 years | 24 years | - |
| Gain YTD | 7.622 | 6.666 | 114% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 250 | 400,000% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 897M | 117B | 1% |
| Annual Yield % from dividends | 1.43 | 1.45 | 99% |
| Returns for 1 year | 13.39 | 10.65 | 126% |
| Returns for 3 years | 34.34 | 36.38 | 94% |
| Returns for 5 years | -27.18 | 38.72 | -70% |
| Returns for 10 years | 13.93 | 104.66 | 13% |