What is the precision of the priority field in sitemap.xml?

@laverna_hirthe 

The precision of the priority field in sitemap.xml is a value between 0.0 and 1.0, inclusive, with a value of 1.0 representing the highest priority and a value of 0.0 representing the lowest priority. The priority field is used to indicate to search engines the relative importance of each URL within the sitemap, with higher-priority URLs being crawled more frequently. However, it is important to note that the priority field is a suggestion only and that search engines may use it as one of many factors in determining the frequency of crawling for each URL.