| IIBTX | PDBZX | IIBTX / PDBZX | |
| Total Expense Ratio | 0.95 | 0.49 | 194% |
| Annual Report Gross Expense Ratio | 1.10 | 0.50 | 220% |
| Fund Existence | 17 years | 30 years | - |
| Gain YTD | -0.729 | -0.764 | 95% |
| Front Load | N/A | N/A | - |
| Min. Initial Investment | 0 | N/A | - |
| Min. Initial Investment IRA | N/A | N/A | - |
| Net Assets | 874M | 52.9B | 2% |
| Annual Yield % from dividends | 4.06 | 4.03 | 101% |
| Returns for 1 year | 2.40 | 2.81 | 86% |
| Returns for 3 years | 13.10 | 15.11 | 87% |
| Returns for 5 years | -2.89 | -1.53 | 189% |
| Returns for 10 years | 12.40 | 16.33 | 76% |