| （単位：千ドル） | 純有利子負債 | 前年比（％） |
|---|---|---|
| 4Q19 | -82,400 | -0.8% |
| 3Q19 | -99,561 | +33.7% |
| 2Q19 | -112,105 | +38.8% |
| 1Q19 | -114,809 | +56.4% |
| 4Q18 | -83,100 | +8.0% |
| 3Q18 | -74,485 | -43.9% |
| 2Q18 | -80,788 | -26.1% |
| 1Q18 | -73,425 | -25.2% |
| 4Q17 | -76,933 | -20.1% |
| 3Q17 | -132,838 | +41.5% |
| 2Q17 | -109,329 | +16.5% |
| 1Q17 | -98,216 | +5.6% |
| 4Q16 | -96,283 | +5.8% |
| 3Q16 | -93,908 | -3.2% |
| 2Q16 | -93,881 | -16.6% |
| 1Q16 | -93,012 | -32.1% |
| 4Q15 | -91,046 | -0.6% |
| 3Q15 | -96,968 | +15.4% |
| 2Q15 | -112,542 | +50.4% |
| 1Q15 | -136,969 | +22.3% |
| 4Q14 | -91,558 | -22.3% |
| 3Q14 | -84,002 | -41.8% |
| 2Q14 | -74,833 | -48.1% |
| 1Q14 | -111,975 | -44.5% |
| 4Q13 | -117,858 | -35.6% |
| 3Q13 | -144,451 | -22.9% |
| 2Q13 | -144,140 | -9.9% |
| 1Q13 | -201,876 | +33.2% |
| 4Q12 | -182,938 | +17.4% |
| 3Q12 | -187,368 | +74.4% |
| 2Q12 | -159,917 | +37.9% |
| 1Q12 | -151,574 | +67.8% |
| 4Q11 | -155,826 | +10.0% |
| 3Q11 | -107,415 | -20.5% |
| 2Q11 | -115,977 | -12.2% |
| 1Q11 | -90,343 | - |
| 4Q10 | -141,656 | - |
| 3Q10 | -135,180 | - |
| 2Q10 | -132,160 | - |