Before you say it depends, please allow me to give a scenario - 1. Site ranks at 24 for "Money Keyword". 2. "Money keyword" ranked in the twenties with the help of about 30 links of various kind, but mostly white hat. 3. Been ranked in the twenties for about 3-4 months with no serious link building. 4. New links are mostly from guest posts on blogs that are NOT made for SEO or PBN. 5. About 15 such links are achieved in a fortnight duration. How many days in 2015 one would expect before this "Money Keyword" rank shows some movement?