It has a half life of ten to twenty minutes. It is most common between the ages of twenty and forty. It was a small facility which generally housed between twenty and thirty inmates. The city consists of forty-five neighborhoods divided between twenty districts. They reside in colonies of about ten to twenty individuals. Usually, eggs incubate for twenty to thirty days. A castle might contain twenty or thirty longhouses. The album charted on both the UK Top Twenty and the US Top Fifty. It has aired for three seasons, consisting of twenty seven episodes. Anywhere from five to twenty attributes are chosen. They remained friends for more than twenty years. Many have lived there for close to twenty years. The war dragged on for nearly twenty years. He practiced this religion for nearly twenty years. A total of twenty two broadcasts were made.