If 50 to 54 is 2119, what is the total number of c/w 15+?
{'header': ['C/W 15+', 'Oblast\\Age', '15 to 17', '18 to 19', '20 to 24', '25 to 29', '30 to 34', '35 to 39', '40 to 44', '45 to 49', '50 to 54', '55 to 59', '60 to 64', '65 to 69', '70+'], 'page_title': 'TFR of Russian regions and ethnic groups', 'section_title': '5.Indigenous Groups of North-West', 'caption': '5.Indigenous Groups of North-West', 'rows': [['1800', 'Karelians in Rep. Karelia', '3', '100', '451', '969', '1397', '1731', '1973', '1953', '1946', '1974', '2092', '2417', '2721'], ['1860', 'Komis in Rep. Komi', '16', '108', '515', '1034', '1486', '1799', '2004', '2176', '2119', '2124', '2576', '2871', '3242'], ['2385', 'Komis in Nenetskiy AO', '22', '250', '804', '1358', '1835', '2163', '2314', '2481', '2749', '2707', '3707', '3853', '4807'], ['2334', 'Nenets in Nenet AO', '21', '198', '676', '1463', '2017', '2481', '3003', '3091', '3839', '3315', '4248', '4027', '5118'], ['2517', 'Nenets in Yamal AO', '34', '198', '747', '1909', '2483', '3315', '3797', '3883', '3821', '4361', '4450', '4719', '4562'], ['2536', 'Nenets in DNAO', '40', '176', '849', '1588', '2743', '3316', '3991', '4766', '4184', '4805', '5390', '5500', '5400'], ['2179', 'Permyak in Kray of Perm', '17', '129', '636', '1271', '1705', '2051', '2244', '2487', '2506', '2596', '3142', '3272', '3368']]}