In recent years, Brazil has experienced a significant slowdown of its once-strong economic growth . In 2010, Brazilian gross domestic product growth was 7.5 percent. By 2014, it had dropped to an estimated 0.1 percent. One of the key drivers of this decline has been a decrease in Brazil's exports. Brazil's 2014 trade deficit was $3.93 billion, down from a $2.5 billion surplus in 2013. It was the country's first annual trade deficit since 2000 — when it posted a deficit of $731.7 million — and its largest since 1998. Unlike export-driven countries such as Germany and China, Brazil's exports are equivalent to only around 13 percent of GDP. They are, however, still a significant driver of the national economy in terms of providing external revenue sources. Among its exports, commodities are essential. They constitute 60 percent of total exports, led by iron ore, crude petroleum and soybeans.