Reforms, changes in technology and changes in the nature of service delivery in this industry were reflected in growth in productivity over the 1980s and 1990s. Since the beginning of this decade there has been minimal productivity growth. This is mainly due to the strong growth in capital services, especially technological assets. However, there are a number of issues relating to the measurement of output that could impact on this result and will need further research. Key amongst these is understanding what is being captured in the measurement of output, and adequately capturing the change in the nature of service delivery. Part of this is also accurately measuring volume of output with appropriate price deflators.