interface

var spanGroupData = [ {"timestamp": 1372662000, "group": [ {"author_id": 0, "token_count": 17830}, ]}, {"timestamp": 1475305200, "group": [ {"author_id": 10, "token_count": 21}, {"author_id": 8, "token_count": 379}, {"author_id": 2, "token_count": 65}, {"author_id": 18, "token_count": 12}, ]}, {"timestamp": 1477983600, "group": [ {"author_id": 4, "token_count": 10}, {"author_id": 10, "token_count": 4}, ]}, {"timestamp": 1480579200, "group": [ {"author_id": 20, "token_count": 8}, ]}, {"timestamp": 1483257600, "group": [ {"author_id": 9, "token_count": 56}, {"author_id": 2, "token_count": 12}, ]}, {"timestamp": 1485936000, "group": [ {"author_id": 29, "token_count": 3}, {"author_id": 16, "token_count": 1}, ]}, {"timestamp": 1488355200, "group": [ {"author_id": 25, "token_count": 2}, {"author_id": 30, "token_count": 3}, {"author_id": 8, "token_count": 3}, {"author_id": 16, "token_count": 17}, {"author_id": 2, "token_count": 1}, ]}, {"timestamp": 1493622000, "group": [ {"author_id": 2, "token_count": 99}, ]}, {"timestamp": 1506841200, "group": [ {"author_id": 21, "token_count": 7}, ]}, {"timestamp": 1517472000, "group": [ {"author_id": 4, "token_count": 1097}, ]}, {"timestamp": 1519891200, "group": [ {"author_id": 13, "token_count": 4}, {"author_id": 2, "token_count": 134}, ]}, {"timestamp": 1522566000, "group": [ {"author_id": 2, "token_count": 62}, ]}, {"timestamp": 1525158000, "group": [ {"author_id": 13, "token_count": 19}, ]}, {"timestamp": 1527836400, "group": [ {"author_id": 25, "token_count": 2}, {"author_id": 10, "token_count": 77}, ]}, {"timestamp": 1535785200, "group": [ {"author_id": 9, "token_count": 129}, ]}, {"timestamp": 1541055600, "group": [ {"author_id": 3, "token_count": 1021}, {"author_id": 32, "token_count": 2}, ]}, {"timestamp": 1543651200, "group": [ {"author_id": 4, "token_count": 76}, {"author_id": 6, "token_count": 654}, {"author_id": 2, "token_count": 125}, {"author_id": 27, "token_count": 3}, ]}, {"timestamp": 1546329600, "group": [ {"author_id": 9, "token_count": 6}, ]}, {"timestamp": 1551427200, "group": [ {"author_id": 14, "token_count": 9}, ]}, {"timestamp": 1554102000, "group": [ {"author_id": 10, "token_count": 22}, {"author_id": 23, "token_count": 5}, ]}, {"timestamp": 1556694000, "group": [ {"author_id": 3, "token_count": 14}, ]}, {"timestamp": 1567321200, "group": [ {"author_id": 15, "token_count": 19}, ]}, {"timestamp": 1569913200, "group": [ {"author_id": 17, "token_count": 14}, {"author_id": 35, "token_count": 1}, ]}, {"timestamp": 1572591600, "group": [ {"author_id": 7, "token_count": 386}, {"author_id": 5, "token_count": 252}, ]}, {"timestamp": 1580544000, "group": [ {"author_id": 5, "token_count": 500}, ]}, {"timestamp": 1583049600, "group": [ {"author_id": 31, "token_count": 2}, ]}, {"timestamp": 1588316400, "group": [ {"author_id": 28, "token_count": 3}, {"author_id": 3, "token_count": 75}, ]}, {"timestamp": 1590994800, "group": [ {"author_id": 12, "token_count": 33}, {"author_id": 3, "token_count": 565}, {"author_id": 9, "token_count": 5}, ]}, {"timestamp": 1593586800, "group": [ {"author_id": 26, "token_count": 4}, {"author_id": 34, "token_count": 2}, ]}, {"timestamp": 1598943600, "group": [ {"author_id": 4, "token_count": 105}, ]}, {"timestamp": 1601535600, "group": [ {"author_id": 11, "token_count": 71}, {"author_id": 14, "token_count": 11}, ]}, {"timestamp": 1606809600, "group": [ {"author_id": 24, "token_count": 4}, ]}, {"timestamp": 1609488000, "group": [ {"author_id": 3, "token_count": 6}, ]}, {"timestamp": 1614585600, "group": [ {"author_id": 19, "token_count": 10}, ]}, {"timestamp": 1617260400, "group": [ {"author_id": 2, "token_count": 334}, ]}, {"timestamp": 1619852400, "group": [ {"author_id": 33, "token_count": 2}, {"author_id": 2, "token_count": 353}, ]}, {"timestamp": 1622530800, "group": [ {"author_id": 2, "token_count": 854}, ]}, {"timestamp": 1625122800, "group": [ {"author_id": 22, "token_count": 6}, {"author_id": 1, "token_count": 8830}, ]}, {"timestamp": 1630479600, "group": [ {"author_id": 4, "token_count": 3}, ]}, ]