Dee ihe na-eso paragraf a - Mgbe asọmpi iko mba ụwa FIBT nke afọ 1981 gasịrị
, a na-ebelata ụzọ ahụ ruo mita 1350 n'ogologo ya na 13 curves, ọdịda dị elu nke 120.45 mita, ọkwa kachasị elu nke 15.9%, na ọkwa ọkwa nke 9.3%.