Impact of Social Network and Business Model on Innovation Diffusion of Electric Vehicles in China

Table 1

Cumulative sales of HEVs in US.

Year	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011
Sales	9350	20282	36035	47600	84199	209711	252636	352274	312386	290271	274210	268755

Data source: [15].