Ministry of Internal Affairs and Communications monitors the price of bean sprouts monthly.
The data below show the changes in the price indexes of bean sprouts between 1975 and 2014, if the price in 2010 is taken as 100. The price is stable for 4 decades.
| Year | Index (2010 = 100) | Price of 100g bean sprouts (yen) |
| 1975 | 68.2 | 108 |
| 1976 | 85 | 135 |
| 1977 | 92.9 | 148 |
| 1978 | 91.9 | 146 |
| 1979 | 89.2 | 142 |
| 1980 | 94 | 149 |
| 1981 | 95.4 | 152 |
| 1982 | 93.6 | 149 |
| 1983 | 94.1 | 150 |
| 1984 | 96.2 | 153 |
| 1985 | 96.1 | 153 |
| 1986 | 96 | 153 |
| 1987 | 94.1 | 150 |
| 1988 | 92.8 | 148 |
| 1989 | 94.1 | 150 |
| 1990 | 94.9 | 151 |
| 1991 | 105.8 | 168 |
| 1992 | 108.9 | 173 |
| 1993 | 110.8 | 176 |
| 1994 | 111.3 | 177 |
| 1995 | 111.6 | 177 |
| 1996 | 112.5 | 179 |
| 1997 | 114.2 | 182 |
| 1998 | 113.3 | 180 |
| 1999 | 113.2 | 180 |
| 2000 | 112.9 | 180 |
| 2001 | 111.7 | 178 |
| 2002 | 110.6 | 176 |
| 2003 | 111.1 | 177 |
| 2004 | 109.5 | 174 |
| 2005 | 108.7 | 173 |
| 2006 | 107.7 | 171 |
| 2007 | 106 | 169 |
| 2008 | 108.5 | 173 |
| 2009 | 104.3 | 166 |
| 2010 | 100 | 159 |
| 2011 | 97.6 | 155 |
| 2012 | 95.8 | 152 |
| 2013 | 93 | 148 |
| 2014 | 95.3 | 152 |
The next graph shows the changes in 1 kg bean sprouts price from 1975 to 2014.
Source is Statistics Bureau. 消費者物価指数 (CPI) 結果
www.stat.go.jp/data/cpi/historic.htm
www.e-stat.go.jp/SG1/estat/Csvdl.do?sinfid=000011288549
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