at which date was the population of banat bulgarians the largest?
1864
col : source | date | population\nromania | population\nserbia | notes row 1 : jozu rill | 1864 | 30,000–35,000 | 30,000–35,000 |  row 2 : hungarian statistics | 1880 | 18,298 | 18,298 |  row 3 : hungarian statistics | 1900 | 19,944 | 19,944 |  row 4 : hungarian statistics | 1910 | 13,536 | 13,536 | "evidently underestimated" row 5 : various authors | second half\nof the 19th century | 22,000–26,000 | 22,000–26,000 | "sometimes including the krashovani" row 6 : romanian census | 1930 | 10,012 |  | romanian banat only row 7 : dimo kazasov | 1936 |  | 3,200 | serbian banat only; estimated row 8 : romanian census | 1939 | 9,951 |  | romanian banat only row 9 : karol telbizov | 1940 | 12,000 |  | romanian banat only; estimated row 10 : mihail georgiev | 1942 |  | up to 4,500 | serbian banat only; estimated row 11 : romanian census | 1956 | 12,040 |  | romania only row 12 : yugoslav census | 1971 |  | 3,745 | serbian banat only row 13 : romanian census | 1977 | 9,267 |  | romania only row 14 : romanian census | 2002 | 6,486 |  | romania only row 15 : serbian census | 2002 |  | 1,658 | serbia only
at which date was the population of banat bulgarians the largest?
Source Date Population\nRomania Population\nSerbia Notes
Jozu Rill 1864 30,000–35,000 30,000–35,000
Hungarian statistics 1880 18,298 18,298
Hungarian statistics 1900 19,944 19,944
Hungarian statistics 1910 13,536 13,536 "evidently underestimated"
Various authors second half\nof the 19th century 22,000–26,000 22,000–26,000 "sometimes including the Krashovani"
Romanian census 1930 10,012 Romanian Banat only
Dimo Kazasov 1936 3,200 Serbian Banat only; estimated
Romanian census 1939 9,951 Romanian Banat only
Karol Telbizov 1940 12,000 Romanian Banat only; estimated
Mihail Georgiev 1942 up to 4,500 Serbian Banat only; estimated
Romanian census 1956 12,040 Romania only
Yugoslav census 1971 3,745 Serbian Banat only
Romanian census 1977 9,267 Romania only
Romanian census 2002 6,486 Romania only
Serbian census 2002 1,658 Serbia only
1864