Table:
Source

Date

Population

Notes

Romania

Serbia

Jozu Rill
1864
30,000–35,000

Hungarian statistics
1880
18,298

Hungarian statistics
1900
19,944

Hungarian statistics
1910
13,536
"evidently underestimated"[9]

Various authors
second half
of the 19th century
22,000–26,000
"sometimes including the Krashovani"[9]

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[12]

Romanian census
1956
12,040

Romania only[13]

Yugoslav census
1971

3,745
Serbian Banat only[14]

Romanian census
1977
9,267

Romania only[13]

Romanian census
2002
6,486

Romania only[1]

Serbian census
2002

1,658
Serbia only[15]

Could you identify and list the entries from the specified rows or columns in this table? The cells of every row or column should be presented in the JSON format of {"row_id/column_id":"<row or column index>", "cell_list":"<a list of cells in this row/column>"}, e.g., {"row_id":"3", "cell_list": ["xxx", "yyy", "zzz"]}.
row 7,
row 5,
column 4,
row 15,
row 9,

The extracted row or column contents are listed below.
For row 7: {"row_id": "7", "cell_list": ['Romanian census', '1930', '10,012', '', 'Romanian Banat only']}
For row 5: {"row_id": "5", "cell_list": ['Hungarian statistics', '1910', '13,536', '13,536', '"evidently underestimated"']}
For column 4: {"column_id": "4", "cell_list": ['Population\\nSerbia', '30,000–35,000', '18,298', '19,944', '13,536', '22,000–26,000', '', '3,200', '', '', 'up to 4,500', '', '3,745', '', '', '1,658']}
For row 15: {"row_id": "15", "cell_list": ['Romanian census', '2002', '6,486', '', 'Romania only']}
For row 9: {"row_id": "9", "cell_list": ['Romanian census', '1939', '9,951', '', 'Romanian Banat only']}