The City of Kingston dropped out of the top 10 in-demand rental markets in the spring, according to a survey conducted by an online service.The rentcafe.com survey , which ranks the country’s 25 largest cities based on online engagement as well as apartment availability, saw Kingston drop to 12th spot in the second quarter of this year from third spot in the previous quarter.According to a news release from the company, the availability of apartments in Kingston rose 22 per cent from the