I have to index a rather large amount of data with Windows Search, so I wanted to have an estimation of index size. I've indexed a subset of data (about 60GB; 13e6 pages of text data each about 4-5KB).
The index has grown to about 78GB, so it now occupies more space than the data itself. These results contradict what I've read here:
The average size of an index is about 10% of the size of all the content that is being indexed.
Is this the expected size of the index? What can be done to reduce it?