270 386 493 676 ^* 2.6 3.2 2.4 2.3 46 47 43 38 5 5 5 5 ^* 7.1 7.1 5.1 4.0 ^* .. .. 66.0 46.0 ^* .. .. 6 6 ^* .. .. 27 20 .. .. 11 19 .. .. 21 26 ^* 47 51 56 63 51 55 60 67 49 53 58 65 ^* 127 106 80 48 ^* .. 153 113 63 .. .. .. 400 .. .. .. <0.2 .. .. <0.1 <0.1 145 207 265 363 21 25 28 28 5.5 4.8 2.7 2.8 3.3 2.4 2.9 2.2 7 14 14 14 2.6 3.7 2.8 2.0 * For the periods 1970-1975, 1980-1985, 1990-1995 and 2005-2010. ** For 2010. ` a For 1996. b For 2000. c For 2007.