Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Competition | Venue | Position | Event | Notes |
| --- | --- | --- | --- | --- | --- |
| 1987 | European Junior Championships | Birmingham, United Kingdom | – | 20 km walk | DQ |
| 1990 | European Championships | Split, Yugoslavia | 4th | 20 km walk | 1:23.47 |
| 1991 | World Championships | Tokyo, Japan | 10th | 20 km walk | 1:21:32 |
| 1991 | World Championships | Tokyo, Japan | – | 50 km walk | DNF |
| 1992 | Olympic Games | Barcelona, Spain | – | 20 km walk | DNF |
| 1992 | Olympic Games | Barcelona, Spain | – | 50 km walk | DQ |
| 1993 | World Indoor Championships | Toronto, Canada | 2nd | 5000 m walk | 18:35.91 |
| 1993 | World Championships | Stuttgart, Germany | – | 50 km walk | DQ |
| 1994 | European Championships | Helsinki, Finland | – | 50 km walk | DQ |
| 1994 | European Championships | Helsinki, Finland | 5th | 50 km walk | 3:45:57 |
| 1995 | World Championships | Gothenburg, Sweden | 3rd | 50 km walk | 3:45.57 |
| 1996 | Olympic Games | Atlanta, United States | 8th | 20 km walk | 1:21:13 |
| 1996 | Olympic Games | Atlanta, United States | 1st | 50 km walk | 3:43:30 |
| 1997 | World Championships | Athens, Greece | 1st | 50 km walk | 3:44:46 |
| 1998 | European Championships | Budapest, Hungary | 1st | 50 km walk | 3:43:51 |
| 1999 | World Race Walking Cup | Mézidon-Canon, France | 4th | 20 km walk | 1:20:52 |
| 1999 | World Championships | Seville, Spain | – | 50 km walk | DQ |
| 2000 | European Race Walking Cup | Eisenhüttenstadt, Germany | 1st | 20 km walk | 1:18:29 |
| 2000 | Olympic Games | Sydney, Australia | 1st | 20 km walk | 1:18:59 (OR) |
| 2000 | Olympic Games | Sydney, Australia | 1st | 50 km walk | 3:42:22 |
| 2001 | World Championships | Edmonton, Canada | 1st | 50 km walk | 3:42.08 |
| 2001 | Goodwill Games | Brisbane, Australia | 2nd | 20,000 m walk | 1:19:52.0 |
| 2002 | European Championships | Munich, Germany | 1st | 50 km walk | 3:36:39 (WR) |
| 2003 | World Championships | Paris, France | 1st | 50 km walk | 3:36:03 |
| 2004 | Olympic Games | Athens, Greece | 1st | 50 km walk | 3:38:46 |
Question:
how many events were at least 50 km?
Answer:
17