Next inning, Erstad doubled with two outs. By 1939 the number of institutions had doubled and enrolment reached 145,000. A year later, it had almost doubled. By 1933, it had more than doubled, peaking at 58,250, but declining thereafter. For example, enrollment numbers nearly doubled from 2000 to 2012. This figure has almost doubled since 1995. LinkedIn stock, meanwhile, had doubled on its first day. By April 2017, that number had doubled, surpassing one million copies. As of 2002, attendance had doubled since completion. By 1950, their numbers had doubled. It had doubled from recorded in 2000. At the same time, U.S. employment has almost doubled. By 1891, the population had doubled again. Consequently, they doubled up in the barracks. The following year, that number doubled.