Scientific Report
2021
3,228
2022
3,068
2023
2,373
2020
2,328
2019
1,839
2018
1,507
2017
1,466
2013
1,281
2016
1,218
2015
1,158
2014
1,064
2012
751
2006
671
2005
599
2011
543
2007
522
2010
489
2004
482
2003
478
2008
471
2009
458
2002
443
2024
440
2001
380
2000
320
1999
223
1997
29
1998
10
1996
4
1982
1
1991
1
1993
1
1994
1