Q3:Romanian female high jump athlete Iolanda Balas became the top player between 1957 and 1968 in her event. How many times did she break the world record during that time?

• 问:罗马尼亚女子跳高选手约兰达-巴拉斯在1957年到1968年间成为该项目最顶尖的选手，请问她在这期间共打破过多少次世界纪录？