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Austria
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June 26: Johann
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July 26: Joachim
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Croatia
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March 29: Jona
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July 26: Joakim i Ana
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Czech Republic
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May 24: Jana
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June 24: Jan
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August 16: Jáchym
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August 21: Johana
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September 27: Jonáš
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Estonia
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March 29: Joakim
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June 24: Jaan, Jan, Janno, Johan, Juhan
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August 15: Janne, Jenny, Johanna, Jaana, Jana
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October 22: Jaano
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Finland
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February 2: Jemin
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March 20: Jaakkima, Joakim
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March 29: Joona, Jouni, Joni, Jonne, Jonni
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April 6: Jam
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June 24: Jani, Janne, Juhana, Juhani
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July 9: Jasmin
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July 21: Jenna, Jenni, Joann, Johanna, Jonna
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August 15: Jaana
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November 15: Janina
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France
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March 8: Jean
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May 30: Jeanne
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July 12: Jason
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July 26: Joachin
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August 19: Jean
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October 23: Jean
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December 27: Jean
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Germany
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January 22: Jana
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February 4: Jenny
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April 16: Joachim
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May 11: Joachim
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May 12: Joana
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May 30: Johanna
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August 17: Janine
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August 19: Johann E.
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September 13: Johann.
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November 25: Jasmin
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December 2: Jan
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December 3: Jason
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December 12: Johanna
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December 13: Johanna
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December 28: John
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Greece
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January 7: John
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April 29: Jason
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May 17: Junia
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September 9: Joahim
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Hungary
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March 28: Johanna
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July 13: Jenõ
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November 18: Jenõ
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Latvia
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May 31: Jusma
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August 21: Janina
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September 10: Jausma
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December 15: Jana, Johanna
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Lithuania
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February 4: Joana
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May 30: Joana
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August 21: Joana
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Poland
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January 10: Jan
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January 17: Jan
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January 23: Jan
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January 31: Jan
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February 2: Joanna
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February 4: Jan, Joanna
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February 5: Jan
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February 8: Jan
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March 1: Joanna
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March 5: Jan
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March 8: Jan
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March 17: Jan
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March 27: Jan
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March 28: Jan
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March 30: Jan
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April 13: Jan
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May 6: Jan
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May 10: Jan
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May 12: Jan, Jazon, Joanna
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May 15: Jan
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May 21: Jan
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May 22: Jan
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May 23: Jan
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May 24: Jan, Joanna
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May 27: Jan
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May 30: Joanna
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June 12: Jan
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June 16: Jan
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June 24: Jan
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June 26: Jan
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August 9: Jan
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August 13: Jan
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August 16: Joachim, Joachima
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August 17: Joanna
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August 19: Jan
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August 20: Jan
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August 21: Joanna
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August 24: Joanna
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August 26: Joanna
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August 29: Jan
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September 3: Joachima, Jan, Joachim
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September 11: Jan
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September 22: Joachim, Joachima
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September 28: Jan
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October 1: Jan
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October 9: Jan
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October 23: Jan
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November 13: Jan
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November 24: Jan
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November 26: Jan
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December 9: Joachim, Joachima
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December 27: Jan
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Slovak Republic
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January 30: Jasna
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February 24: Jazmína
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June 24: Ján, Johan
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August 16: Jáchim, Joachim
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August 21: Jana, Johana
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November 12: Jonáš
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Sweden
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March 20: Joakim
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July 21: Johanna
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October 6: Jenny
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Ukraine
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May 4: June
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June 24: John, Jean, Joan, Johanna
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September 9: Joachim
