Tehran: Iran's Gross Domestic Product (GDP) grew by 4% in the first six months of Iran's current calendar year (March 20 - September 21), with non-oil GDP rising by 2.6% compared to the same period last year, according to a report by the Statistical Center of Iran (SCI). According to Islamic Republic News Agency, the SCI report, which was released on Monday, indicated that Iran's GDP, including oil, reached 50,691 trillion rials (equivalent to some $72 billion based on free market rates) during the six-month period, while GDP, excluding oil, stood at 38,374 trillion rials ($54.2 billion). The data underscores sustained growth in key sectors of the economy despite ongoing challenges. The agricultural sector grew by 2.9%, industry and mining expanded by 5.3%, and services posted a 2.5% growth during the period, compared to last year's corresponding period.