year jpn  E137
1985 19.2  3.3
1986 10.3  2.0
1987 11.0  1.7
1988 15.2  0.9
1989 15.1  2.2
1990 16.4  2.4
1991 10.7  2.0
1992 10.8  1.1
1993  9.5  1.5
1994 12.3  1.9
1995 13.2  0.6
1996  6.9  3.2
1997  9.2  1.2
1998  6.2  6.2
1999  4.9  2.3
2000  6.2  1.5
2001  4.4  0.8
2002  5.9  1.0
2003  4.0  2.2
2004  7.5  2.2
2005  9.3  2.1
2006  7.4  1.7
2007 10.0  2.8
2008  4.0 10.1
2009  7.7  1.5
2010  7.3  1.7
2011 16.0  9.3
2012  9.4  4.2
2013  9.8  3.5
2014  8.5  7.2
2015  9.3  4.4
2016 12.2  5.2
2017 14.5  7.6
2018 15.5  5.4
2019 12.2  2.3
2020  7.7  5.8
2021  7.8  2.9
2022 21.1  8.3
2023 11.7  1.6