By Charlotte HuDrug companies have been hit hard this year.Public opinion, trust and reputation of pharmaceutical companies appear to be eroding, according to a new analysis from the research consulting firm Reputation Institute.Pharma giants saw a 3.7% decline in reputation score from last year. There was also a significant decline in the public's perception of the transparency, openness and authenticity of drugmakers.The points are calculated from 2,608 individual ratings on seven areas: products and services, innovation, workplace, governance, citizenship, leadership, and financial performance. These contribute to companies' "RepTrak" score. Overall, of the 22 pharma companies ranked, Sanofi was number one and Pfizer was last.Here are the companies ranked from worst to best based on perception: http://www.businessinsider.com/pharmaceutical-company-reputation-rankings-2018-6?IR=T