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
13.00 M
26.00 M
39.00 M
52.00 M
2023
37.33 M
−2.26 M
−5.71%
2022
39.59 M
−9.12 M
−18.72%
2021
48.71 M
+8.23 M
+20.34%
2020
40.47 M
−2.32 M
−5.43%
2019
42.80 M
+3.58 M
+9.14%