这一方面最为成功的都是盎格鲁撒克逊国家(按照顺序是加拿大、���尔兰、澳大利亚、美国以及英国 ) ， 还有丹麦和挪威。
The most successful countries in this regard have been the Anglo-Saxon countries (Canada, Ireland, Australia, the United States, and the UK, in that order), as well as Denmark and Norway.