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Explanatory notes to the efficiency indicators


The hourly rates are set each year by the owner. At 1 January 2012, the RIVM cost price model was revised with the approval of the owner. This led to adjustment of the composition of the hourly rates, in which a distinction is made between the basic hourly rate and a generic laboratory rate. In relation to 2013, the hourly rate was adjusted to compensate for the low cover for the laboratory rate. The tariff system will again be re-assessed for 2015.

Number of full time employees (contracted personnel)

As of 31-12-2014, there were 1,380 full-term positions (fte). The increase in the number of ftes is a result of converting from payroll contracts to government contracts.

Balance of income and expenditure (% of income)

The movement in the percentage balance is presented in relation to previous years.


With regard to the efficiency indicators, RIVM uses the accepted business management indicators of liquidity, solvency and return on equity capital.

The current ratio indicates the extent to which the short-term debt can be paid from short-term assets. A value above 1 is generally considered to be healthy, and RIVM meets this status with a value of 1.3.

The negative result and other capital movements in 2014 reduced equity capital and thus increased the debt ratio versus the previous two years.

The return of -3.0% on equity capital is the result of the negative result in 2014.

Percentage of contracted personnel of the total personnel cost

The total cost of contracted personnel in 2014 was € 15.4 million, which is higher than in 2013 (€ 10.4 million). The main reasons for the increase in contracted personnel are presented in the Explanation Notes on personnel costs. The percentage of contracted personnel in 2014 was 13.5% compared to 9.3% in 2013.

Percentage of invoices paid within 30 days

In 2014, the percentage of invoices paid within 30 days was 94.9%, which is considerably higher than the standard of 90%, and was similar to the percentage for 2013.