https://www.japantimes.co.jp/life/2009/10/11/lifestyle/japans-top-100-most-common-family-names/

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('佐藤','坂東','佐東','佐島','左藤','左東','佐当','砂藤','甘庶','佐棟','佐登','佐籐','砂糖','佐當','佐等','沙藤','砂東','左登','左塔');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('鈴木','鈴置','須々木','鱸','雪','寿松木','鐸木','進来','錫木','寿々木','鈴記','鈴樹','魲','鈴来','鈴城','壽松木','鈴々木','鈴紀','鈴酒','寿洲貴','鈴耒','鈴義','鈴未','寿数喜','涼木','鈴喜');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('高橋','高階','髙橋','鷹觜','鷹箸','孝橋','鷹嘴','鷹橋','鷹啄','高槁','高端','鷹羽司','高梁','嵩橋','鷹梁','喬橋' /*,collation issue '髙𣘺','高槗','髙槗','高𫞎','高𣘺'*/);

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('田中','田仲','田内','多中','多名賀','他中','田名加','多仲');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('渡辺','渡部','渡邊','渡邉','競','渡鍋','亘鍋','綿鍋','綿奈部','和田鍋','綿辺','渡那部','邊辺');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('伊藤','伊東','伊達','井藤','井筒','井島','伊豆','市東','依藤','井東','井嶋','伊島','以頭,''猪頭','夷藤','飯藤','猪藤');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('山本','山下','山元','山許','山夲','山基');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('中村','仲村','永村','中邑','中邨','名嘉村','仲邑','仲邨');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('小林','小橋','古林','木林','児林','光林','小早志','子林','少林','湖林','兒林');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('加藤','加島','下島','嘉藤','加登','加嶋','河東','加戸','甲藤','鹿糠','加東','河藤','賀藤','加唐','可藤','加統','花等','家登','香藤','華藤','歌藤','賀登','賀東','加籐','嘉籐','加斗','鹿頭','加頭','河隝','何東','歌頭','加当','迦統','嘉糖','加當','嘉東','鹿藤','鹿糖','河騰');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('吉田','依田','芦田','喜田','礒田','源田','芳田','誉田','由田','好田','慶田','美田','葭田','善田','嘉田','良田','義田','賀田','吉多','儀田','誉士太','よし田','与四田','与子田','由多','芳多','佳田','與四田','愿田' /* collation issue,'𠮷田'*/);

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('山田','山多');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('佐々木','笹木','篠木','笹生','笹崎','雀','佐崎','佐佐木','鷦鷯','佐々城','笹﨑','左崎','篠笥','佐々生','佐々貴','笹氣','笹気','左嵜','笹記','沙々木','笹城','左々木');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('山口','山久地');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('佐藤','斎藤','斉藤','齋藤','齊藤','西島','首藤','西藤','西塔','西東','才藤','西頭','済藤','齋籐','西堂','齊籐','歳桃','妻藤','西洞','斎籐','斎当','西当','薺藤','細藤','斉当','濟藤','犀藤','斎東','斉籐','佐囲東','霽藤','再東','さい藤','薺籐','西當','在藤','歳藤','崔藤','斉東','西塘','齎藤','濟籐','斉當','柴燈','齋東剤藤','済籐','財藤','才頭','斎塔','佐居東','再藤','西籐','細東','齊當','齏藤','齊籘','裁頭');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('松本','松元','末本','枩本','松夲','松茂渡','柗本');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('井上','井之上','井ノ上','猪上','居上','井野上','井植','伊上','猪ノ上','藺上','伊野上','井表','猪植','亥上','居野上','以野上','家ノ上','伊之上');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('木村','嘉村','亀村','木邨','城村','喜村','鬼村','木邑','基村','貴村','樹村','記村','季村','喜邑','貴邑','黄村','帰村','岐村','木邸','岐邨','竒村');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('林','森','早志','早嶋','早司','晨','早師','林志','速司','早矢士');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('清水','志水','深水','冷水','真水','寒水','師水','清泉','眞水','泗水','瀏','設水','士水','清三津','志美津','施水',/*'滋水',*/'市水','施水',/*'滋水',*/'磁水','七美','紫水','静水');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('山崎','山﨑','山嵜','山先','山咲','山碕','山岬','山埼','屋馬崎','山㟢');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('森','毛利','盛','守','母里','茂利','杜');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('阿部','安部','安倍','河辺','綾部','安武','安陪','阿辺','阿閉','相部','阿倍','安辺','阿邊','阿邉','阿陪','猜','晁','安邊','安邉');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('池','生田','井桁','井ケ田','池多','溏田','垳田','為計田','池太','生駄','爲計田');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('橋本','橋元','橋下','端本','枦元','箸本','枦本','端元','槁本','觜本','𫞎本','土師元','槗本','𣘺本');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('山下','山志田');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('石川','石河','石嘉波','伊志川');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('中島','中嶋','仲島','中嶌','仲嶋','中陦','仲嶌','那賀島','中路間','那賀嶋','中隯');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('前田','米田','真栄田','前多','前枝','前江田','眞栄田','前甸','間枝','眞榮田','真榮田','真枝','前夛','真江田');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('藤田','冨田','渕田','冨士田','富士田','葛田','藤多','潭田','籐田','不死田');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('小川','及川','梶川','小河','押川','尾川','生川','老川','猿川','尾河','恩河','雄川','緒川','緒河','苧川','苧側','於川');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('後藤','五島','権藤','古藤','五藤','五嶋','神門','呉藤','五頭','呉島','後東','悟道','梧桐','伍島','五嶌','五東','郷頭','午頭','五斗','後道','伍堂','五刀','伍嶋','后藤','伍藤','後当','呉東','後當','後登','語堂','吾藤','五唐','後島','五籐','後籐','後等','吾東','伍東','後嶋','湖藤','梧藤','郷藤');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('岡田','尾形','小方','陸田','円田','岳田','魚形','丘田','岡朶','岡多','岡太','丘太');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('長谷川','初瀬川','馳川','長谷河','沙魚川','櫨川','走川','枦川','泊瀬川','糠川','八瀬河','羽瀬川','早谷川','波瀬川','八瀬川','長瀬川','葉瀬川');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('村上','邑上','邨上','村神','村雄','邑神','村頭','群上');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('近藤','権藤','今藤','金藤','今道','金銅','今東','金堂','近堂','金道','近道','紺藤','根東','近東','近多','紺道','金筒','建道','紺堂','近籐','今桐','建藤','昆藤','今登','今桃','近頭','今堂','金通','近灯','昆勲');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('石井','石居','磯井','石射','石伊','甃井','伊志伊','伊志井');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('斎藤','佐藤','斉藤','齋藤','齊藤','西島','首藤','西藤','西塔','西東','才藤','西頭','済藤','齋籐','西堂','齊籐','歳桃','妻藤','西洞','斎籐','斎当','西当','薺藤','細藤','斉当','濟藤','犀藤','斎東','斉籐','佐囲東','霽藤','再東','さい藤','薺籐','西當','在藤','歳藤','崔藤','斉東','西塘','齎藤','濟籐','斉當','柴燈','齋東','剤藤','済籐','財藤','才頭','斎塔','佐居東','再藤','西籐','細東','齊當','齏藤','齊籘','裁頭');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('坂本','坂下','阪本','坂元','坂根','酒本','阪元','酒元','栄元','坂之','隥本');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('遠藤','猿渡','遠島','延藤','円藤','円道','圓藤','延東','遠洞','薗頭','円堂','延堂','円東','遠道','遠堂','園頭','園藤','圓道','圓堂','淵藤','園道','渕藤','圓東');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('青木','浅尾','仰木','青樹','青儀','檍','粟生木','青鬼','青城','青黄','碧木','葵木','安保木','滄木','靑木');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('藤井','藤生','藤居','冨井','葛井','冨士井','富士井','藤猪','藤飯','藤伊','不二井','藤位','富士居','不二葦','冨士居','藤ヰ','藤懿','籐井');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('西村','西野','西邑','西邨');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('福田','副田','幅田','服田','福多','富久田','福沺','福夛','服多');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('太田','多田','大田','尾田','夛田','黄田','大多','往田','翁田','太多','応田','太駄','應田','大太','巨田','大夛');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('三浦','箕浦','深浦','神浦','美浦','見浦','三裏','身浦','水ト','弥浦','水卜','美裏');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('藤原','冨士原','富士原','藤藁','不死原','不二原','藤𠩤','籐原');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('岡本','岡元','岳本','岡源','丘本','陵本','岳元','御神本','岡基','崗本');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('松田','末田','茨田','松多','枩田','柗田');

select id, first_name, last_name from civicrm.civicrm_contact where first_name in ('中川','仲川','中河','仲河','那賀川','中側','仲側');