When it comes to the last factor, this is relevant since labourers bill different prices across the country. http://theunitedtimes.com/__media__/js/netsoltrademark.php?d=Vuf.minagricultura.gov.co%2FLists%2FInformacin%2520Servicios%2520Web%2FDispForm.aspx%3FID%3D10457671
