English to Russian Law/Patents Economics

Может лучше не "покрытие", а "отражение" в данном контексте?

Whereas the declaration by the Council and the Commission, recorded in the minutes of the Council, on the occasion of the adoption of Directive 89/130/EEC, Euratom, has indicated that the committee set up by Article 6 of the said Directive, hereinafter called the 'GNP Committee`, should concentrate its work on improving the degree of coverage of the so-called parallel economy in the national accounts;
Whereas the coverage of economic activity carried on in contravention of tax and social security legislation in Member States' estimates of gross national product at market prices, hereinafter called 'GNPmp`, is at present non-uniform;