2006-20118622680.094369960.040.51 2007-20129190750.074784290.090.52 2008-20139553810.045049990.060.53 2009-2014936495-0.025417930.070.58 2010-20159853660.055701810.050.58 2011-201610576450.076046580.060.57 2012-201710939830.036314540.040.58 2013-201811142640.026595200.040.59 2014-201912028500.086773660.030.56 2015-202012510850.047014620.040.56 2016-20211022236-0.18641044-0.090.63