List population when their car plates are 30-34.
{'header': ['car plates (since 1937)', 'Voivodeship Separate city', 'Capital', 'Area in 1000km² (1930)', 'Population in 1000 (1931)'], 'page_title': 'Administrative division of the Second Polish Republic', 'section_title': '', 'caption': 'Polish Voivodeships 1919–1939', 'rows': [['car plates (since 1937)', 'Voivodeship Separate city', 'Capital', 'Area in 1000km² (1930)', 'Population in 1000 (1931)'], ['00-19', 'City of Warsaw', 'Warsaw', '0,14', '1179,5'], ['85-89', 'warszawskie', 'Warsaw', '31,7', '2460,9'], ['20-24', 'białostockie', 'Białystok', '26,0', '1263,3'], ['25-29', 'kieleckie', 'Kielce', '22,2', '2671,0'], ['30-34', 'krakowskie', 'Kraków', '17,6', '2300,1'], ['35-39', 'lubelskie', 'Lublin', '26,6', '2116,2'], ['40-44', 'lwowskie', 'Lwów', '28,4', '3126,3'], ['45-49', 'łódzkie', 'Łódź', '20,4', '2650,1'], ['50-54', 'nowogródzkie', 'Nowogródek', '23,0', '1057,2'], ['55-59', 'poleskie', 'Brześć nad Bugiem', '36,7', '1132,2'], ['60-64', 'pomorskie', 'Toruń', '25,7', '1884,4'], ['65-69', 'poznańskie', 'Poznań', '28,1', '2339,6'], ['70-74', 'stanisławowskie', 'Stanisławów', '16,9', '1480,3'], ['75-79 ?', 'śląskie (autonomous)', 'Katowice', '5,1', '1533,5'], ['80-84', 'tarnopolskie', 'Tarnopol', '16,5', '1600,4'], ['90-94', 'wileńskie', 'Wilno', '29,0', '1276,0']]}