第t_i年	年份	可用系数A_F(t_i)/%
第t_i年	年份	变压器	断路器	避雷器	电流互感器
1	2002	98.816	99.243	99.636	99.538
2	2003	98.936	99.103	99.570	99.440
3	2004	98.973	99.373	99.673	99.640
4	2005	99.200	99.328	99.673	99.595
5	2006	99.444	99.502	99.674	99.614
6	2007	99.491	99.602	99.753	99.732
7	2008	99.404	99.713	99.812	99.807
8	2009	99.470	99.776	99.786	99.794
9	2010	99.539	99.848	99.862	99.826
10	2011	99.662	99.879	99.920	99.895