2007–2011   2002–2006   1998–2002   1993–1997   1988–1992 Selected consolidated data 1993–1997 (in CHF) 1997 1996 1995 1994 1993 Number of employees   1,765 1,847 2,147 2,298 1,828 Sales core business CHFm 350.2 353.0 356.4 334.1 268.0 Total sales CHFm 383.5 396.0 410.1 393.1 350.1 EBITDA CHFm 60.9 62.1 69.6 75.7 54.2 EBIT 1) CHFm 33.7 36.0 42.6 52.9 33.5 Net income2) CHFm 19.2 20.1 22.7 27.3 17.8 Cash flow 3) CHFm 46.4 46.2 49.7 50.1 38.5 Shareholders' equity 2) CHFm 163.7 149.0 128.0 114.2 156.6 Net liquidity / (debt) CHFm 29.7 14.9 (32.0) (37.6) (2.4) Total assets CHFm 355.9 360.7 328.7 332.6 309.5 Investments 4) CHFm 18.1 18.0 31.9 15.7 20.9 1) earnings before interest and taxes 2) including minority interest 3) earnings before depreciation/amortisation, including minority interest 4) in property, plant and equipment