Table:
text: 1995 Giro d'Italia
Classification Leadership
Classification leadership by stage
Stage Winner General_classification Points_classification Mountains_classification Trofeo_Fast_Team
10 Tony Rominger Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
11 Enrico Zaina Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
12 Pascal Richard Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
13 Oliverio Rincón Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
14 Claudio Chiappucci Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
15 Mariano Piccoli Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
16 Giuseppe Citterio Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
17 Tony Rominger Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
18 Denis Zanette Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
19 Pascal Richard Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan
20 Serguei Outschakov Tony Rominger Tony Rominger Mariano Piccoli Gewiss-Ballan

Question: What earned the winner of stage 16 of the 1995 Giro d'Italia the classification lead by stage?