The Oregon Symphony announced today that they had achieved double-digit gains in both average concert attendance and ticket sales revenue. For the 2007-2008 season, the OSO sold $5.64 million in tickets, up over 15 percent from the previous season. As for audience attendance, the symphony sold 7,878 more tickets that last season, which, combined with six fewer concerts that last season, made for just over a 14 percent increase in average paid attendance.