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 | Notes |
| --- | --- | --- | --- | --- |
| 1983.0 | Pan American Games | Caracas , Venezuela | 1st | High Jump |
| 1983.0 | World Championships | Helsinki, Finland | 4th | High Jump |
| 1987.0 | Pan American Games | Indianapolis , United States | 1st | High Jump |
| 1987.0 | World Championships | Rome, Italy | 11th | High Jump |
| 1988.0 | Olympic Games | Seoul, South Korea | 18th | High Jump |
Question:
What Notes after 1983 have a Position of 18th?
Answer:
High Jump