1988 1989 1990 1991 1992 1993 1994 | 59.27 42.29 41.59 65.79 59.50 58.11 63.08 | 4 107.66 2 970.96 2 950.89 4 078.75 4 463.57 4 529.55 4 985.62 | 72 217.59 74 626.14 77 593.48 77 036.55 83 059.35 87 181.13 91 656.23 | 8.94 9.38 10.27 11.18 12.74 13.64 14.61 | 12.21 12.40 13.25 14.43 15.76 16.24 17.08 |