電気料金の推移

	2006/10/27	\-7,654	2007/10/29	\-7,106
	2006/11/27	\-7,268	2007/11/27	\-7,081
	2006/12/27	\-8,306	2007/12/27	\-8,747
	2007/1/29	\-13,517	2008/1/28	\-12,055
	2007/2/27	\-11,211	2008/2/27	\-10,096
	2007/3/27	\-11,064	2008/3/27	\-9,253
	2007/4/27	\-7,678	2008/4/28	\-5,854
	2007/5/28	\-7,437	2008/5/27	\-6,603
	2007/6/27	\-6,189	2008/6/27	\-5,877
	2007/7/27	\-7,050	2008/7/28	\-6,105
	2007/8/27	\-6,712	2008/8/27	\-6,673
	2007/9/27	\-6,593	2008/9/29	\-6,602
		\-100,679		\-92,052
		\-8,390		\-7,671