| MUBFX | RMFEX | MUBFX / RMFEX | |
| Total Expense Ratio | 0.70 | 0.62 | 113% |
| Annual Report Gross Expense Ratio | 0.77 | 0.62 | 124% |
| Fund Existence | 56 years | 24 years | - |
| Gain YTD | 10.918 | 9.303 | 117% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 1000000 | 250 | 400,000% |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 917M | 118B | 1% |
| Annual Yield % from dividends | 1.42 | 1.42 | 100% |
| Returns for 1 year | 14.01 | 9.23 | 152% |
| Returns for 3 years | 32.51 | 36.13 | 90% |
| Returns for 5 years | -25.82 | 39.39 | -66% |
| Returns for 10 years | 10.52 | 99.14 | 11% |