1 2 2 3 3 4 5 1 6 1) 0.28% 1.42% 6.27% 1.06% -5.99% 0.36% = 300 75 25% 2) = 300 75 25% 3) 7 8 3) 9 2007 4 1 2007 4 24 10 2007 4 1 2007 4 24 11 12 13 14 7 15 16 17 18 7 19 20 21 22