年度数据
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
0.00
0.20
0.40
0.60
0.80
2023
0.74
+0.33
+79.01%
2022
0.42
+0.23
+120.56%
2021
0.19
−0.04
−17.48%
2020
0.23
+0.12
+102.09%
2019
0.11
−0.04
−25.61%