Pharmaceutical The psoriasis market experienced approximately 36.5 million prevalent cases across the USA, France, Germany, Italy, Spain, the UK, Japan, China and India in 2012. By 2022, epidemiologists forecast that this figure will reach around 40.93 million cases, following a 12.1% increase based on projected population growth, according to a new report added to the offering of companies and markets.com. 19 April 2013