年度数据
2001
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
0.44
−0.11
−19.85%
2022
0.55
−0.13
−18.85%
2021
0.68
−0.07
−9.93%
2020
0.75
−0.02
−3.16%
2019
0.78
−0.28
−26.63%