In census people can leave the "nationality" field empty and they can also write down any nationality or ethnicity they want. Most Romani people fill in the Czech nationality. Thus, the real number of Romani in the country is estimated to be around 220,000. Petr Lhotka: Romové v České republice po roce 1989Արխիվացված 2007-02-20 Wayback Machine
In census people can leave the "nationality" field empty and they can also write down any nationality or ethnicity they want. Most Romani people fill in the Czech nationality. Thus, the real number of Romani in the country is estimated to be around 220,000. Petr Lhotka: Romové v České republice po roce 1989Արխիվացված 2007-02-20 Wayback Machine