Americans have an annual median household income of $76,862. Following the 2000 US census when Bulgarians were 50-100,000, during the last 10 years their number has grown significantly to over 250,000. Bulgarian-born population Bulgarian-born population in the US since 2010: Language According to the 2000 US Census, 28,565 people indicated that they speak Bulgarian at home in 2000. But in the recent years the number grew significantly to over 250,000 people. Some Bulgarian Americans speak Bulgarian, especially the more recent immigrants, while others might not speak the language at all, or speak Bulgarian mixed with English to a lesser or greater extent. Some Bulgarian Americans understand Bulgarian even though they might not be able to speak the language. There are cases where older generations of Bulgarians or descendants of Bulgarian immigrants from the early part of the 20th century are fluent in the Bulgarian language as well. Notable people John Vincent Atanasoff (1903–1995) – inventor of the first automatic electronic digital computer Miroslav Barnyashev – professional wrestler who worked as "Rusev" and currently, "Miro" Christo – world-famous artist known for projects such as The Gates and The Wrapped Reichstag Carolyn Christov-Bakargiev – writer, art historian, and curator Bill Danoff – songwriter and singer [Bill does not have Bulgarian heritage, despite the name, according to the man himself.] Kiradjieff brothers, creators of Cincinnati chili Stephane Groueff (1922–2006) – writer and journalist who wrote the book Manhattan Project: The Untold Story of the Making of the Atomic Bomb Assen Jordanoff (1896–1967) – aviation constructor with a global recognition Dan Kolov (1892–1940) – early 20th century wrestler Ted Kotcheff – film and television director and producer (First Blood, Weekend at Bernie's) Leah LaBelle (1986–2018) – singer and finalist on American Idol Alex Maleev – comic book illustrator and artist best known for the Marvel Comics' series Daredevil (vol. 2), collaborating with writer Brian Michael Bendis Angela Nikodinov – figure skater Victor Ninov – nuclear physicist Peter Petroff (1919–2003) – inventor, engineer, NASA scientist, and adventurer Maria Popova – writer, critic, and blogger; named among the "100 Most Creative People in Business" by Fast Company in 2012 Svetla Protich – classical pianist Vladimir Tenev – billionaire, co-founder of Robinhood, entrepreneur Andre Roussimoff (1946–1993) – professional wrestler known as André the Giant Dimitar Sasselov – astronomer and professor at Harvard University Kyril Vassilev (1908–1987) – portrait painter of royalty and American society during the mid-20th