Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| year | result | world rank | location | date |
| 1973 | 45.5 | 9th | bakersfield | jun 16 |
| 1974 | 45.76 | 11th | austin | aug 24 |
| 1975 | 45.9 | 30th | bakersfield | may 17 |
| 1976 | 44.82 | 4th | westwood | jun 12 |
| 1977 | 45.45 | 7th | zurich | aug 24 |
| 1978 | 45.15 | 6th | westwood | jun 10 |
Title:
none
Statement:
in 1977 the world rank was 4th
Answer:
refuted