Changes in the Prices of Yokan in Japan, 1970-2014
Yokan is a Japanese sweet which is thick, jellied dessert made of red bean paste, sugar , and agar.
Japanese government monitors the price of yokan every month.
The following data show the changes in the price indexes of yokan between 1970 and 2014, if the price in 2010 is taken as 100.
| Year | Index (2010 = 100) | Price of 100g Yokan (yen) |
| 1970 | 19.7 | 47 |
| 1971 | 21.7 | 52 |
| 1972 | 23.4 | 56 |
| 1973 | 25.6 | 61 |
| 1974 | 34.9 | 83 |
| 1975 | 40.1 | 95 |
| 1976 | 42.8 | 102 |
| 1977 | 46.4 | 110 |
| 1978 | 48.0 | 114 |
| 1979 | 48.1 | 114 |
| 1980 | 52.1 | 124 |
| 1981 | 55.4 | 132 |
| 1982 | 58.1 | 138 |
| 1983 | 59.8 | 142 |
| 1984 | 60.5 | 144 |
| 1985 | 61.5 | 146 |
| 1986 | 62.0 | 148 |
| 1987 | 62.2 | 148 |
| 1988 | 62.6 | 149 |
| 1989 | 64.2 | 153 |
| 1990 | 66.2 | 158 |
| 1991 | 69.2 | 165 |
| 1992 | 71.0 | 169 |
| 1993 | 73.6 | 175 |
| 1994 | 76.8 | 183 |
| 1995 | 79.7 | 190 |
| 1996 | 81.9 | 195 |
| 1997 | 83.5 | 199 |
| 1998 | 88.0 | 209 |
| 1999 | 86.6 | 206 |
| 2000 | 90.9 | 216 |
| 2001 | 90.8 | 216 |
| 2002 | 91.1 | 217 |
| 2003 | 91.7 | 218 |
| 2004 | 92.9 | 221 |
| 2005 | 92.5 | 220 |
| 2006 | 94.5 | 225 |
| 2007 | 96.9 | 231 |
| 2008 | 99.9 | 238 |
| 2009 | 101.0 | 240 |
| 2010 | 100.0 | 238 |
| 2011 | 100.6 | 239 |
| 2012 | 101.4 | 241 |
| 2013 | 102.6 | 244 |
| 2014 | 104.3 | 248 |
The next data show the changes in 100g yokan price from 1970 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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