KABUL, Jan. 15 (Xinhua) -- Esmatullah, a 32-year-old taxi driver in Kabul and the sole breadwinner for a family of 10, spends more than 1,000 afghanis (nearly 16 U.S. dollars) per month on medicines prescribed for his wife, who suffers from a neurological illness. While alternatives are available, rising prices still strain his limited income. "Prices are higher than before," he said quietly. "In the past four mo