Medicinal plants have become extremely popular among doctors and patients in Germany in recent years. Around 75 percent of customers in German pharmacies reach for a natural product when they buy nonprescription medications. In 2006, so-called phytopharmaceuticals accounted for around 2 billion worth of revenue, or about a third of the total revenue in non-prescription medications. There is a high demand for these medicinal plants and their leaves, flowers, roots, and seeds, in total, 45,000 tons of medicinal plants are consumed by Germany each year, making it the market leader in Europe. According to statistics from the federal agency for nature conservation (BFN), around 1500 types of plants are traded, in Germany in larger or smaller amounts. Also throughout the world, herbs are used, and even approved by governments as medicine.