Total Store Sales and Total Number of Stores

| 1974 | 0.7 |
| 1975 | 4.8 |
| 1976 | 17.4 |
| 1977 | 39.8 |
| 1978 | 72.5 |
| 1979 | 109.8 |
| 1980 | 153.6 |
| 1981 | 202.1 |
| 1982 | 256.5 |
| 1983 | 319.0 |
| 1984 | 386.7 |
| 1985 | 453.6 |
| 1986 | 521.9 |
| 1987 | 599.1 |
| 1988 | 686.3 |
| 1989 | 780.3 |
| 1990 | 931.9 |
| 1991 | 1,081.8 |
| 1992 | 1,194.9 |
| 1993 | 1,281.9 |
| 1994 | 1,392.3 |
| 1995 | 1,477.1 |
| 1996 | 1,609.0 |
| 1997 | 1,740.9 |
| 1998 | 1,848.1 |
| 1999 | 1,963.9 |
| 2000 | 2,046.6 |
| 2001 | 2,114.0 |
| 2002 | 2,213.2 |
| 2003 | 2,343.1 |
| 2004 | 2,440.8 |
| 2005 | 2,498.7 |
| 2006 | 2,533.5 |
| 2007 | 2,574.3 |
| 2008 | 2,762.5 |
| 2009 | 2,784.9 |
| 2010 | 2,947.6 |
| 2011 | 3,280.5 |

| 1974 | 15 |
| 1975 | 69 |
| 1976 | 199 |
| 1977 | 375 |
| 1978 | 591 |
| 1979 | 801 |
| 1980 | 1,040 |
| 1981 | 1,306 |
| 1982 | 1,643 |
| 1983 | 2,001 |
| 1984 | 2,299 |
| 1985 | 2,651 |
| 1986 | 2,964 |
| 1987 | 3,304 |
| 1988 | 3,653 |
| 1989*1 | 3,954 |
| 1990*2 | 4,270 |
| 1991 | 4,629 |
| 1992, | 5,058 |
| 1993 | 5,475 |
| 1994 | 5,905 |
| 1995 | 6,373 |
| 1996 | 6,875 |
| 1997 | 7,314 |
| 1998 | 7,732 |
| 1999 | 8,153 |
| 2000 | 8,602 |
| 2001 | 9,060 |
| 2002 | 9,690 |
| 2003 | 10,303 |
| 2004 | 10,826 |
| 2005 | 11,310 |
| 2006 | 11,735 |
| 2007 | 12,034 |
| 2008 | 12,298 |
| 2009 | 12,753 |
| 2010 | 13,232 |
| 2011 | 14,005 |