1 Based on data from Preqin, 2009.
2 Actis 2009.
3 Preqin 2009.
4 See http://www.macquarie.com and http://www.highstarcapital.com.
5 Bowman 2009.
6 Macquarie Global Infrastructure Index Series.
7 EIB 2009.
8 InfraNews 2010.