Ministry of Internal Affairs and Communications monitors the price of rolled toilet paper monthly.
The data below show the changes in the price indexes of rolled toilet paper between 1975 and 2014, if the price in 2010 is taken as 100.
| Year | Index (2010 = 100) | Price of 12 rolls of toilet paper (yen) |
| 1975 | 103.4 | 273 |
| 1976 | 101.8 | 269 |
| 1977 | 106.5 | 281 |
| 1978 | 103.0 | 272 |
| 1979 | 104.6 | 276 |
| 1980 | 129.9 | 343 |
| 1981 | 123.9 | 327 |
| 1982 | 118.2 | 312 |
| 1983 | 119.2 | 315 |
| 1984 | 119.5 | 315 |
| 1985 | 119.0 | 314 |
| 1986 | 118.7 | 313 |
| 1987 | 118.1 | 312 |
| 1988 | 117.5 | 310 |
| 1989 | 119.5 | 315 |
| 1990 | 121.1 | 320 |
| 1991 | 127.0 | 335 |
| 1992 | 128.0 | 338 |
| 1993 | 125.7 | 332 |
| 1994 | 120.0 | 317 |
| 1995 | 114.4 | 302 |
| 1996 | 114.2 | 301 |
| 1997 | 112.0 | 296 |
| 1998 | 110.3 | 291 |
| 1999 | 109.8 | 290 |
| 2000 | 108.3 | 286 |
| 2001 | 104.9 | 277 |
| 2002 | 102.7 | 271 |
| 2003 | 106.0 | 280 |
| 2004 | 104.4 | 276 |
| 2005 | 100.0 | 264 |
| 2006 | 99.0 | 261 |
| 2007 | 102.2 | 270 |
| 2008 | 108.5 | 286 |
| 2009 | 107.8 | 285 |
| 2010 | 100.0 | 264 |
| 2011 | 96.5 | 255 |
| 2012 | 94.2 | 249 |
| 2013 | 92.9 | 245 |
| 2014 | 99.7 | 263 |
The next graph shows the changes in the price of 12 rolls of toilet paper 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=000011288564
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