| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 1Q19 | -93,772 | -41.7% |
| 4Q18 | -140,696 | +7.8% |
| 3Q18 | -175,970 | +72.9% |
| 2Q18 | -167,418 | +17.0% |
| 1Q18 | -160,807 | +36.4% |
| 4Q17 | -130,524 | -17.1% |
| 3Q17 | -101,800 | -801.4% |
| 2Q17 | -143,128 | -611.1% |
| 1Q17 | -117,898 | -179.2% |
| 4Q16 | -157,386 | -213.2% |
| 3Q16 | 14,514 | -91.4% |
| 2Q16 | 28,004 | -85.7% |
| 1Q16 | 148,796 | -280.2% |
| 4Q15 | 139,077 | -237.7% |
| 3Q15 | 169,139 | -393.8% |
| 2Q15 | 195,177 | +605.7% |
| 1Q15 | -82,575 | -301.5% |
| 4Q14 | -100,976 | -430.7% |
| 3Q14 | -57,569 | -177.4% |
| 2Q14 | 27,657 | -64.7% |
| 1Q14 | 40,985 | -56.5% |
| 4Q13 | 30,531 | -37.1% |
| 3Q13 | 74,368 | -46.5% |
| 2Q13 | 78,435 | -59.5% |
| 1Q13 | 94,236 | -53.5% |
| 4Q12 | 48,574 | -77.4% |
| 3Q12 | 138,964 | -42.4% |
| 2Q12 | 193,620 | -31.4% |
| 1Q12 | 202,583 | -28.6% |
| 4Q11 | 215,215 | - |
| 3Q11 | 241,135 | - |
| 2Q11 | 282,434 | - |
| 1Q11 | 283,545 | - |