I was reading an article about the new stadium and I found these interesting facts.
"The most shocking example of this absence of supporters was a 2002 Coppa Italia fixture between Juve and Sampdoria, attended by a mere 237 people. These figures are put into perspective when one recalls the 1995 Uefa Cup semi final and final which Juve relocated to the San Siro in Milan. Both games attracted 85,000 spectators.."