Year Range	No. of Points	Average annual growth rate	Weighted average annual growth rate	Median annual growth rate
2003	28	1.75	2.03	1.56
2004	31	1.75	1.67	1.62
2005	31	2.15	1.93	1.51
2006	58	3.36	2.08	1.58
2007	81	1.75	3.53	1.32
2008	71	1.66	1.31	1.17