| | Weighted average | | | | | | ||||||
| | effective interest rate as | | | | | | ||||||
| | of December 31 | | 2017 | | 2016 | | ||||||
| | 2017 | | 2016 | | | | | | ||||
Local currency | | | | | | | | | | | | | |
Bonds | | | 8.9 | % | | 8.6 | % | | 1,692,471 | | | 2,008,203 | |
Syndicated loan | | | 8.7 | % | | 9.5 | % | | 3,307,950 | | | 3,828,329 | |
Other (1) | | | 7.7 | % | | 9.1 | % | | 978,795 | | | 905,266 | |
| | | | | | | | | 5,979,216 | | | 6,741,798 | |
| | | | | | | | | | | | | |
Foreign currency | | | | | | | | | | | | | |
Bonds | | | 6.1 | % | | 6.1 | % | | 29,166,594 | | | 29,310,165 | |
Commercial loans Refinería de Cartagena | | | 4.3 | % | | 4.1 | % | | 7,401,781 | | | 7,988,678 | |
Commercial loans | | | 4.3 | % | | 2.9 | % | | 528,815 | | | 7,945,693 | |
Other (1) | | | | | | | | | 471,429 | | | 235,693 | |
| | | | | | | | | 37,568,619 | | | 45,480,229 | |
| | | | | | | | | 43,547,835 | | | 52,222,027 | |
Current (2) | | | | | | | | | 5,144,504 | | | 4,126,203 | |
Non-current | | | | | | | | | 38,403,331 | | | 48,095,824 | |
| | | | | | | | | 43,547,835 | | | 52,222,027 | |
(1) | Includes financial leasing and debt in connection with build, operate, maintenance and transfer (BOMT) contracts. |
(2) | The increase in the current portion is mainly due to the expiration of: i) the first tranche of local bonds issued by Ecopetrol S.A. in 2013, and ii) the 5-year series of international bonds issued in 2013 by Ecopetrol S.A.. These bonds mature in August and September 2018, respectively. |