There was a significant improement in 1-year surial in all age groups. The 1-year RSRs increased from 0.73 between 1973 and1979 to 0.82 between 1994 and 2003.

• 所有年龄组的一年生存率有显著改善。一年生存率由1973年到1979年间的0.；73增长至1994年到1979年间的0