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:
| ride | year opened | ride manufacturer and type | minimum height | rating |
| the demon | 1980 | arrow dynamics | 48 | 5 |
| flight deck | 1993 | bolliger & mabillard inverted roller coaster | 54 | 5 |
| gold striker | 2013 | great coasters international wooden roller coaster | 48 | 4 |
| grizzly | 1986 | wooden roller coaster | 48 | 4 |
| psycho mouse | 2001 | arrow dynamics wild mouse roller coaster | 44 | 4 |
| taxi jam | 1999 | e&f miller industries kiddie coaster | 36 | 2 |
| vortex | 1991 | bolliger & mabillard stand - up roller coaster | 54 | 5 |
| woodstock express | 1987 | intamin family roller coaster | 40 | 3 |
Title:
california 's great america
Statement:
25% of the rides were opened before the year 2000
Answer:
refuted