| Year | The import proportion of SITC5-8 from South Korea to China | The export proportion of SITC5-8 from South Korea to China | ||||||
| SITC5 | SITC6 | SITC7 | SITC8 | SITC5 | SITC6 | SITC7 | SITC8 | |
| 1992 | 20.56% | 49.62% | 17.31% | 2.81% | 6.78% | 29.33% | 4.16% | 6.82% |
| 1993 | 16.90% | 46.79% | 20.91% | 4.22% | 7.41% | 26.41% | 7.09% | 13.47% |
| 1994 | 19.41% | 43.74% | 23.85% | 4.46% | 8.24% | 30.15% | 8.24% | 17.20% |
| 1995 | 22.99% | 39.42% | 22.89% | 5.25% | 9.42% | 41.52% | 10.03% | 14.82% |
| 1996 | 20.00% | 39.97% | 25.55% | 5.71% | 7.54% | 33.08% | 15.72% | 15.42% |
| 1997 | 21.25% | 37.84% | 23.56% | 5.30% | 6.60% | 34.07% | 16.35% | 14.39% |
| 1998 | 24.64% | 37.87% | 21.85% | 4.39% | 7.72% | 26.89% | 23.81% | 14.36% |
| 1999 | 21.87% | 36.21% | 26.51% | 4.09% | 7.65% | 27.60% | 25.47% | 14.75% |
| 2000 | 22.11% | 31.38% | 30.84% | 3.83% | 6.82% | 25.11% | 26.57% | 16.10% |
| 2001 | 22.11% | 29.74% | 32.89% | 4.43% | 6.95% | 21.04% | 29.09% | 18.63% |
| 2002 | 20.17% | 23.43% | 42.83% | 6.89% | 6.56% | 22.09% | 28.68% | 20.78% |
| 2003 | 16.66% | 19.74% | 44.16% | 12.94% | 6.36% | 22.05% | 30.54% | 20.42% |
| 2004 | 16.70% | 16.77% | 43.25% | 16.51% | 5.92% | 25.66% | 36.62% | 16.70% |
| 2005 | 17.04% | 14.77% | 45.77% | 16.39% | 6.47% | 27.52% | 35.81% | 13.78% |
| 2006 | 16.63% | 12.96% | 47.36% | 15.15% | 6.83% | 30.61% | 35.29% | 14.43% |
| 2007 | 17.18% | 11.39% | 47.22% | 16.29% | 7.02% | 31.06% | 36.47% | 13.16% |
| 2008 | 17.53% | 10.92% | 45.09% | 15.93% | 6.72% | 33.07% | 39.22% | 10.80% |
| 2009 | 17.30% | 11.11% | 46.85% | 17.46% | 7.19% | 21.37% | 48.83% | 12.53% |
| 2010 | 15.91% | 9.52% | 48.90% | 18.26% | 8.04% | 23.16% | 46.48% | 13.30% |
| 2011 | 16.81% | 8.98% | 47.16% | 16.95% | 8.90% | 24.68% | 43.20% | 14.28% |
| 2012 | 16.54% | 8.21% | 49.90% | 15.85% | 7.74% | 21.83% | 48.08% | 14.22% |
| 2013 | 16.90% | 8.61% | 53.68% | 13.89% | 7.88% | 19.71% | 50.36% | 14.31% |