The era since privatisation has also brought large patronage increases, an increase in platform stops, and a new ticketing system. In 1999–2000 year—when the tram system was privatised—patronage was 127.3 million per annum, this has increased almost each year since, and in the 2012–2013 year was 182.7 million passenger trips, a 4.2% year-on-year patronage increase; trams are the second most utilised public transport method, between trains and buses. Yarra Trams, the Department of Transport, and later Public Transport Victoria, are introducing level boarding stops to improve accessibility and safety, and comply with the Disability Discrimination Act; as of January 2014 360 accessible stops have been constructed, all since 1999. The Metcard ticketing system which operated from 1996 was switched off on 29 December 2012, leaving myki—which has been in operation on Melbourne trains since 29 December 2009, and valid on Melbourne trams and buses since 25 July 2010—as the sole ticketing system.