In this task you are given data in the tabular format and a question. Write the answer to the question based on the information in the table.

Table: ['Year', 'Competition', 'Venue', 'Position', 'Notes']. ['1989', 'European Indoor Championships', 'The Hague, Netherlands', '10th', '']. ['1989', 'World Indoor Championships', 'Budapest, Hungary', '9th', '']. ['1991', 'World Indoor Championships', 'Lisbon, Portugal', '6th', '']. ['1991', 'World Championships', 'Tokyo, Japan', '5th', '5.75 m NR']. ['1992', 'European Indoor Championships', 'Genoa, Italy', '5th', '']. ['1993', 'World Championships', 'Stuttgart, Germany', '11th', '']. Question: when was the championships held?
['1991']