Year	annual %
1991	79.386104296155
1992	568.807295439343
1993	1391.1665431516788
1994	4107.296769947429
1995	161.16391757915898
1996	19.591770305213288
1997	17.735994494583693
1998	10.698497756298295
1999	0.053804080932536635
2000	-1.3736759982814704
2001	4.027969481778243
2002	2.357399019111412
2003	4.598515728379397
2004	6.278594107671466
2005	3.208756666352812
2006	4.618012508188272
2007	4.2778755387817995
2008	5.989562360687344
2009	2.4972530789156338
2010	7.768715480676519
2011	4.281549998261184
2012	5.345804418147253
2013	3.3668246422446515
2014	2.3091824299097397
2015	1.213909904710846
2016	0.2685750765013921
2017	2.1506418984861284
2018	2.787709514257614
2019	1.065622639234192
2020	1.8065927015993282
2021	6.900513657871571
2022	7.985701969716146
2023	2.832123160083384