This calculation was based on the figures of 211 kg per capita per year of municipal waste generated in West Bosnia and Herzegovina (rural area), and 386 kg in Sarajevo (urban area). Considering that average municipal waste generation per capita in the Western Balkans (Albania, Croatia, Montenegro, Serbia and the former Yugoslav Republic of Macedonia) as of 2005 was 250 kg (ranging from 200 to 350 kg), annual generation of municipal waste in BiH may be less than 365 kg per capita. The waste utility companies are not yet applying a uniform methodology or definitions of waste and only a limited number of landfills have weighing equipment. If such equipment is more widely installed and uniform practices are implemented, municipal waste data is expected to improve. Individual invoices are sent to households and about 60-75 per cent of households pay their bills (see chapter 5). However, other sources, i.e. government presentations and press releases, estimate the average collection rate at between 45 per cent and 70 per cent.