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	99.173	99.548	99.831	99.779
2	2003	99.175	99.612	99.846	99.803
3	2004	99.312	99.691	99.866	99.838
4	2005	99.371	99.680	99.881	99.828
5	2006	99.489	99.744	99.892	99.853
6	2007	99.579	99.803	99.894	99.878
7	2008	99.646	99.856	99.920	99.912
8	2009	99.722	99.892	99.931	99.921
9	2010	99.733	99.921	99.945	99.936
10	2011	99.849	99.958	99.975	99.968