Defines the percentage of each index page to leave as free space when building an index. This is an Integer property. The first entry is added without restriction. Additional entries are placed in an index page with the defined integer percent of free space left on each page. The defined integer value can range from 0 to 99. The default is 10. If you define a value greater than 10, only 10 percent free space will be left in non-leaf pages.