KB Home is one of the largest and most recognized homebuilding companies in the U.S. We have been building homes for over 60 years, with more than 600,000 homes delivered since our founding in 1957. We build a variety of new homes designed primarily for first-time and first move-up, as well as second move-up and active adult homebuyers, including attached and detached single-family residential homes, townhomes and condominiums. We offer homes in development communities, at urban in-fill locations and as part of mixed-use projects. Our homebuilding operations represent the majority of our business, accounting for 99.7% of our total revenues in 2018. Our financial services operations, which accounted for the remaining.3% of our total revenues in 2018, offer various insurance products to our homebuyers in the markets where we build homes and provide title services in certain of those markets. Our financial services operations also provide mortgage banking services, including residential consumer mortgage loan ("mortgage loan") originations, to our homebuyers indirectly through KBHS Home Loans, LLC ("KBHS"), an unconsolidated joint venture we formed with Stearns Lending, LLC ("Stearns").
Unless the context indicates otherwise, the terms "we," "our" and "us" used in this report refer to KB Home, a Delaware corporation, and its predecessors and subsidiaries. Also, as used in this report, "home" is a single-family residence, whether it is a single-family home or other type of residential property; "community" is a single development in which new homes are constructed as part of an integrated plan; and "community count" is the number of communities we have open for sales with at least five homes/lots left to sell.
The following charts present homes delivered, homebuilding revenues, homebuilding operating income and pretax income for the years ended November 30, 2016, 2017 and 2018: