year over a million people pass through Vancouver on cruise ship vacations, often bound for Alaska. Vancouver is the most stressed city in the spectrum of affordability of housing in Canada. In 2012, Vancouver was ranked by Demographia as the second-most unaffordable city in the world, rated as even more severely unaffordable in 2012 than in 2011. The city has adopted various strategies to reduce housing costs, including cooperative housing, legalized secondary suites, increased density and smart growth. As of April 2010, the average two-level home in Vancouver sold for a record high of $987,500, compared with the Canadian average of $365,141. A factor explaining the high property prices may be policies by the Canadian government which permit snow washing, which allows foreigners to buy property in Canada while shielding their identities from tax authorities, making real estate transactions an effective way to conduct money laundering. Since the 1990s, development of high-rise condominia in the downtown peninsula has been financed, in part, by an inflow of capital from Hong Kong immigrants due to the former colony's 1997 handover to China. Such development has clustered in the Yaletown and Coal Harbour districts and around many of the SkyTrain stations to the east of the downtown. The city's selection to co-host the 2010 Winter Olympics was also a major influence on economic development. Concern was expressed that Vancouver's increasing homelessness problem would be exacerbated by the Olympics because owners of single room occupancy hotels, which house many of the city's lowest income residents, converted their properties to attract higher income residents and tourists. Another significant international event held in Vancouver, the 1986 World Exposition, received over 20million visitors and added $3.7billion to the Canadian economy. Some still-standing Vancouver landmarks, including the SkyTrain public transit system and Canada Place, were built as part of the exposition. Government Vancouver, unlike other British Columbia municipalities, is incorporated under the Vancouver Charter. The legislation, passed in 1953, supersedes the Vancouver Incorporation Act, 1921 and grants the city more and different powers than other communities possess under BC's Municipalities Act. The civic government was dominated by the centre-right Non-Partisan Association (NPA) since World War II, albeit with some significant centre-left interludes until 2008. The NPA fractured over the issue of drug policy in 2002, facilitating a landslide victory for the Coalition of Progressive Electors (COPE) on a harm reduction platform. Subsequently, North America's only legal safe injection