- Fluctuations in sales per fiscal year
| 2008 | 34 billion JPY |
 |
| 2007 | 35 billion JPY |
|
| 2006 | 39.4 billion JPY |
|
| 2005 | 36.3 billion JPY |
 |
| 2004 | 48.9 billion JPY |
 |
| 2003 | 46.2 billion JPY |
 |
| 2002 | 44.3 billion JPY |
 |
| 2001 | 53.5 billion JPY |
 |
| 2000 | 46.4 billion JPY |
 |
| 1999 | 32.9 billion JPY |
 |
| 1998 | 39.2 billion JPY |
 |
| 1997 | 29.8 billion JPY |
 |
| 1996 | 31.2 billion JPY |
 |
| 1995 | 21.1 billion JPY |
 |
| 1994 | 15.9 billion JPY |
 |
| 1993 | 12.9 billion JPY |
 |
| 1992 | 13.3 billion JPY |
 |
| 1991 | 12.1 billion JPY |
 |
| 1990 | 11.8 billion JPY |
 |
| 1989 | 8.8 billion JPY |
 |
| 1988 | 5 billion JPY |
 |
| 1987 | 3.8 billion JPY |
 |
| 1986 | 1.9 billion JPY |
 |
