| (US$ Million) | | Item | 2017-18 | 2017 | 2018 | | May | Apr. | May | | 1 | 2 | 3 | 4 | | 1 Automatic Route | | | | | | 1.1 Number | 769 | 44 | 71 | 84 | | 1.2 Amount | 20,397 | 1,049 | 2,254 | 1,347 | | 2 Approval Route | | | | | | 2.1 Number | 38 | 1 | 3 | - | | 2.2 Amount | 8,471 | 1 | 1,663 | - | | 3 Total (1+2) | | | | | | 3.1 Number | 807 | 45 | 74 | 84 | | 3.2 Amount | 28,868 | 1,050 | 3,917 | 1,347 | | 4 Weighted Average Maturity (in years) | 6.10 | 5.20 | 5.60 | 3.10 | | 5 Interest Rate (per cent) | | | | | | 5.1 Weighted Average Margin over 6-month LIBOR or reference rate for Floating Rate Loans | 1.34 | 1.56 | 1.02 | 1.11 | | 5.2 Interest rate range for Fixed Rate Loans | 0.00-12.25 | 0.00-11.00 | 0.00-11.30 | 0.00-13.88 | | Note : Based on applications for ECB/Foreign Currency Convertible Bonds (FCCBs) which have been allotted loan registration number during the period. | |