哪些国家的电动自行车使用率最低呢？
使用率最低的是芬兰和挪威。[{'character': '使', 'pinyin': 'shiii3', 'highest pitch': 9.12, 'lowest pitch': 8.64, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 10.07, 'lowest pitch': 9.12, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '率', 'pinyin': 'lv4', 'highest pitch': 9.57, 'lowest pitch': 8.11, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '最', 'pinyin': 'zuei4', 'highest pitch': 10.28, 'lowest pitch': 8.11, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '低', 'pinyin': 'di1', 'highest pitch': 10.07, 'lowest pitch': 8.19, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.25, 'lowest pitch': 7.79, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 8.01, 'lowest pitch': 7.38, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '芬', 'pinyin': 'fen1', 'highest pitch': 9.72, 'lowest pitch': 7.39, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '兰', 'pinyin': 'lan2', 'highest pitch': 9.67, 'lowest pitch': 6.18, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '和', 'pinyin': 'he2', 'highest pitch': 7.6, 'lowest pitch': 6.69, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '挪', 'pinyin': 'nuo2', 'highest pitch': 6.87, 'lowest pitch': 5.25, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '威', 'pinyin': 'uei1', 'highest pitch': 8.63, 'lowest pitch': 6.87, 'duration': 0.28, 'prosody hierarchy': '#4'}]