After installing ahc tables left in database

In my database i found these tables:
ahc_browsers
ahc_countries
ahc_hits
ahc_keywords
ahc_recent_visitors
ahc_refering_sites
ahc_searching_visits
ahc_search_engines
ahc_search_engine_crawlers
ahc_title_traffic
ahc_visitors
ahc_visits_time

Are these tables from this plugin?
If so, can i delete these tables safely?

Thanks!