<prompt> Kamilisha sentensi ifuatayo: Katika FIL Luge Ulaya Mashindano, Gruber alishinda medali tisa na dhahabu mbili Wanaume doubles: 2008, 2014, fedha nne Wanaume doubles: 2004; Mchanganyiko wa timu: 2004,  <response>: 2006, 2013, na shaba tatu Waume doubles: 2006; Mchanganyiko wa timu: 2012, 2014. 