Using Extract B, calculate the index of quantity of timber harvested for Year Z and identify one significant feature of the data for the period 2012 to 2018.
Extract B: Harvesting levels and market values of European timber
| 2012 | 2015 | 2018 | Year Z (forecast) | |
|---|---|---|---|---|
| Quantity of timber (m3m^3m3) | 800,000 | 640,000 | 500,000 | 350,000 |
| Index of quantity | 160 | 128 | 100 | ? |
| Value (€ million) | 320 | 410 | 480 | 510 |
| Index of value | 67 | 85 | 100 | 106 |
187 exam-style questions on AQA A Level Economics 2.1 The measurement of macroeconomic performance, covering 2.1.1 The objectives of government economic policy, 2.1.2 Macroeconomic indicators, 2.1.3 Uses of index numbers, and 2.1.4 Uses of national income data (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.