(12)At present Directive 78/660/EEC makes provision for examination every five years of, inter alia , the maximum thresholds for balance sheet and net turnover which Member States may apply in determining which companies may be exempted from certain disclosure requirements. In addition to those five-yearly examinations, an additional one-off increase in those balance sheet and net turnover thresholds may also be appropriate. There is no obligation on Member States to make use of those increased thresholds.