This figure is referred to in the book as Figure 2.2 (Page 16)

Sources
Food and Agriculture Organisation of the United Nations www.fao.org/worldfoodsituation/FoodPricesIndex/en/ (accessed 18th July 2009).
Food Price Index: Consists of 55 commodity quotations considered by FAO commodity specialists as representing the international prices for 5 food groups (meat, dairy, creals, oils and fats, sugar).
The New York Merchantile Exchange (2009).
Crude Oil Price: Price history for a barrel of light, sweet crude oil for future delivery as traded on the New York Mechantile Exhange (NYMEX).