| Inventions in 2001 | 1004 | Change in % |
| Inventions in 2002 | 1028 | 2.39% |
| Inventions in 2003 | 930 | -9.53% |
| Inventions in 2004 | 1171 | 25.91% |
| Inventions in 2005 | 1247 | 6.49% |
| Inventions in 2006 | 1097 | -12.03% |
| Inventions in 2007 | 950 | -13.40% |
| Inventions in 2001 | 20 | Change in % |
| Inventions in 2002 | 15 | -25.00% |
| Inventions in 2003 | 9 | -40.00% |
| Inventions in 2004 | 14 | 55.56% |
| Inventions in 2005 | 19 | 35.71% |
| Inventions in 2006 | 7 | -63.16% |
| Inventions in 2007 | 4 | -42.86% |