[14] Trade movements between Britain and the Kingdom of the Two Sicilies in the half century between 1817 and 1869 show a clearly discernible pattern - a long period of slow growth from the post-Napoleonic years through the 1840s years of high protective duties and navigation laws - followed by a phase of rapid growth during the decades of the 1850s and 1860s. Britain accounts for approximately one-third of the total trade of the Kingdom of the Two Sicilies during this half-century and maintained a favorable balance of commodity trade in thirty-two of the fifty-two years. The value of British exports to South Italy increased approximately three times between 1817 and 1869 while British imports from South Italy increased almost ten times.