| ◆ ◆ | | 2005 20 2007 | | 2012 | | 2013 | ⑴ | 5 | ⑵ | 20 | | | | ◆ ◆ | | | | | | | | | | | | | | 5 | 20 | | = | 6 × = 20 | ÷ 70 20 | 2.4 2.4 1.2 | | | ◆ ◆ | | | | | | | | | | | | | | | | | |