A picture is worth a thousand words, but sometimes a chart can be even more valuable. As a new chapter in the book of BlackBerry begins to unfold with a possible buyout looming, The Washington Post republished a comScore chart that does a great job of illustrating BlackBerry’s rise to dominance in the U.S. smartphone market. It also shows us how unbelievably quickly the company’s U.S. market share evaporated as Android and iOS grew to take over the country. The only thing more frightening about the chart, perhaps, is the fact that Microsoft’s Windows Phone platform is even worse off than BlackBerry. ComScore’s chart takes us through March 2013, but the picture certainly hasn’t improved since then — according to the market research firm’s latest data, BlackBerry’s U.S. smartphone market share fell to 4.3% in the three-month period ended in July while Windows Phone stayed flat at 3%.