| 1990 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | |
| Australia | 10.23 | 10.57 | 10.71 | 10.98 | 10.84 | 11.24 | 10.48 | 10.67 | 10.46 | 10.90 | 11.08 | 11.35 | 11.71 | 11.36 |
| Austria | 4.50 | 4.50 | 4.40 | 4.37 | 4.24 | 4.10 | 3.97 | 3.85 | 3.78 | 3.70 | 3.60 | 3.53 | 3.47 | 3.41 |
| Belarus | 2.59 | 2.59 | 2.58 | 2.43 | 2.29 | 2.14 | 2.33 | 2.53 | 2.73 | 2.92 | 2.96 | 2.98 | 3.09 | 3.40 |
| Belgium | 3.41 | 3.28 | 3.04 | 3.10 | 3.23 | 3.16 | 3.06 | 3.13 | 3.00 | 2.76 | 2.68 | 2.21 | 2.07 | 2.00 |
| Bulgaria | 16.04 | 12.00 | 11.51 | 10.61 | 10.01 | 9.61 | 8.69 | 7.15 | 6.22 | 4.91 | 4.98 | 4.83 | 4.79 | 5.59 |
| Canada | 20.07 | 20.71 | 21.16 | 21.65 | 21.89 | 21.99 | 22.07 | 23.08 | 23.63 | 24.01 | 24.56 | 24.34 | 24.89 | 25.45 |
| Croatia | 0.93 | 0.92 | 0.90 | 0.91 | 0.94 | 0.99 | 0.98 | 1.03 | 1.08 | 1.16 | 1.16 | 1.20 | 1.24 | 1.29 |
| Czech Republic | 2.98 | -- | 3.31 | -- | 3.19 | 3.21 | 3.16 | 2.88 | 2.92 | 2.73 | 2.73 | 2.62 | 2.81 | 2.84 |
| Denmark | 1.62 | 1.65 | 1.65 | 1.68 | 1.64 | 1.59 | 1.57 | 1.52 | 1.46 | 1.49 | 1.48 | 1.47 | 1.49 | 1.46 |
| Estonia | 1.61 | 1.03 | 0.83 | 0.86 | 1.03 | 1.06 | 1.28 | 1.49 | 1.42 | 1.30 | 1.20 | 0.72 | 0.75 | 0.73 |
| European Community | 141.28 | 141.89 | 140.91 | 140.04 | 137.22 | 133.27 | 130.47 | 124.30 | 119.91 | 113.72 | 108.52 | 103.53 | 99.23 | 96.73 |
| Finland | 3.97 | 4.01 | 4.04 | 4.03 | 3.96 | 3.90 | 3.80 | 3.70 | 3.53 | 3.45 | 3.25 | 3.14 | 2.92 | 2.73 |
| France | 15.84 | 16.51 | 17.19 | 17.78 | 18.27 | 18.64 | 18.98 | 16.91 | 16.80 | 16.42 | 16.22 | 15.46 | 14.77 | 14.41 |
| Germany | 35.92 | 35.57 | 34.88 | 33.85 | 30.93 | 28.33 | 25.84 | 23.34 | 21.10 | 18.62 | 16.79 | 15.26 | 14.35 | 14.04 |
| Greece | 5.36 | 5.36 | 5.48 | 5.55 | 5.74 | 5.81 | 5.93 | 6.01 | 6.20 | 5.55 | 5.43 | 5.09 | 5.08 | 5.18 |
| Hungary | 5.37 | 4.85 | 5.06 | 4.67 | 4.77 | 4.83 | 4.90 | 4.90 | 5.23 | 4.87 | 5.08 | 5.40 | 4.85 | 4.72 |
| Iceland | 0.13 | 0.14 | 0.15 | 0.16 | 0.17 | 0.20 | 0.21 | 0.21 | 0.21 | 0.22 | 0.23 | 0.23 | 0.22 | 0.22 |
| Ireland | 1.35 | 1.38 | 1.43 | 1.47 | 1.52 | 1.57 | 1.63 | 1.60 | 1.39 | 1.30 | 1.51 | 1.61 | 1.83 | 2.06 |
| Italy | 13.47 | 14.04 | 13.30 | 13.70 | 14.04 | 14.25 | 14.30 | 14.47 | 14.27 | 14.55 | 14.43 | 14.33 | 13.33 | 12.73 |
| Japan | 24.94 | 25.48 | 26.62 | 26.57 | 29.33 | 30.27 | 31.18 | 32.31 | 32.80 | 32.66 | 33.41 | 32.50 | 31.95 | 31.62 |
| Latvia | 0.82 | 0.84 | 0.85 | 0.77 | 0.78 | 0.90 | 0.91 | 0.94 | 1.01 | 1.05 | 1.09 | 1.14 | 1.14 | 0.94 |
| Liechtenstein | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- |
| Lithuania | 3.48 | -- | -- | -- | -- | -- | -- | -- | 1.68 | -- | -- | 1.56 | 1.51 | 1.46 |
| Luxembourg | 0.11 | -- | -- | -- | 0.08 | 0.08 | -- | -- | 0.07 | 0.09 | 0.07 | 0.06 | 0.06 | 0.07 |
| Monaco | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| Netherlands | 12.82 | 12.95 | 12.72 | 12.38 | 11.94 | 11.32 | 10.96 | 10.62 | 10.21 | 9.39 | 8.87 | 8.38 | 8.02 | 7.38 |
| New Zealand | 2.48 | 2.51 | 2.16 | 2.15 | 2.06 | 2.06 | 2.01 | 1.82 | 1.81 | 1.78 | 1.72 | 1.72 | 1.73 | 1.75 |
| Norway | 2.57 | 2.56 | 2.52 | 2.53 | 2.54 | 2.52 | 2.53 | 2.54 | 2.46 | 2.42 | 2.46 | 2.32 | 2.25 | 2.22 |
| Poland | 20.28 | 17.94 | 19.76 | 17.49 | 17.96 | 17.80 | 13.69 | 14.22 | 18.28 | 19.01 | 19.41 | 12.41 | 11.95 | -- |
| Portugal | 5.22 | 5.43 | 5.64 | 5.87 | 6.07 | 6.27 | 6.48 | 6.69 | 6.97 | 7.40 | 6.55 | 6.35 | 6.61 | 6.63 |
| Romania | 5.36 | 5.20 | 5.20 | 5.29 | 5.52 | 5.41 | 5.29 | 5.34 | 5.08 | 5.17 | 5.23 | 5.15 | 5.01 | 5.07 |
| Russian Federation | 40.74 | 40.95 | 40.95 | 40.95 | 40.95 | 37.17 | 37.17 | 37.926 | 37.821 | 37.8 | -- | -- | -- | -- |
| Slovakia | 2.09 | 2.03 | 1.99 | 1.91 | 1.92 | 1.93 | 2.11 | 1.93 | 1.80 | 1.82 | 1.86 | 1.86 | 2.13 | 2.22 |
| Slovenia | 0.73 | 0.75 | 0.73 | 0.73 | 0.73 | 0.73 | 0.73 | 0.76 | 0.78 | 0.80 | 0.81 | 0.81 | 0.82 | 0.81 |
| Spain | 7.14 | 7.38 | 7.90 | 8.37 | 8.77 | 8.49 | 9.01 | 9.59 | 10.03 | 10.32 | 10.61 | 11.03 | 11.30 | 11.50 |
| Sweden | 2.79 | 2.85 | 2.85 | 2.74 | 2.63 | 2.63 | 2.60 | 2.57 | 2.49 | 2.35 | 2.23 | 2.18 | 2.05 | 2.00 |
| Switzerland | 2.06 | 1.95 | 1.91 | 1.81 | 1.71 | 1.66 | 1.63 | 1.62 | 1.67 | 1.68 | 1.75 | 1.68 | 1.69 | 1.69 |
| Ukraine | 22.23 | 22.80 | 23.09 | 22.78 | 22.70 | 22.87 | 22.15 | 21.96 | 21.82 | 18.29 | 19.68 | 22.41 | 20.60 | 22.70 |
| United Kingdom | 27.76 | 26.89 | 26.03 | 25.04 | 24.15 | 23.14 | 22.24 | 20.19 | 18.60 | 16.32 | 14.80 | 13.42 | 11.90 | 11.13 |
| United States of America | 210.11 | 211.90 | 213.13 | 213.54 | 212.24 | 206.50 | 200.73 | 193.73 | 186.00 | 183.11 | 180.59 | 176.50 | 178.31 | 183.82 |