powerpc

var spanGroupData = [ {"timestamp": 1238569200, "group": [ {"author_id": 3, "token_count": 3}, ]}, {"timestamp": 1251788400, "group": [ {"author_id": 13, "token_count": 1}, ]}, {"timestamp": 1357027200, "group": [ {"author_id": 12, "token_count": 3}, ]}, {"timestamp": 1380610800, "group": [ {"author_id": 9, "token_count": 5}, ]}, {"timestamp": 1430463600, "group": [ {"author_id": 0, "token_count": 16}, ]}, {"timestamp": 1467356400, "group": [ {"author_id": 0, "token_count": 1486}, ]}, {"timestamp": 1472713200, "group": [ {"author_id": 4, "token_count": 36}, ]}, {"timestamp": 1483257600, "group": [ {"author_id": 3, "token_count": 13}, ]}, {"timestamp": 1488355200, "group": [ {"author_id": 0, "token_count": 68}, ]}, {"timestamp": 1493622000, "group": [ {"author_id": 3, "token_count": 5}, ]}, {"timestamp": 1498892400, "group": [ {"author_id": 3, "token_count": 17}, ]}, {"timestamp": 1509519600, "group": [ {"author_id": 10, "token_count": 5}, ]}, {"timestamp": 1514793600, "group": [ {"author_id": 6, "token_count": 24}, ]}, {"timestamp": 1517472000, "group": [ {"author_id": 0, "token_count": 67}, {"author_id": 3, "token_count": 4}, ]}, {"timestamp": 1527836400, "group": [ {"author_id": 3, "token_count": 4}, ]}, {"timestamp": 1538377200, "group": [ {"author_id": 0, "token_count": 4}, {"author_id": 5, "token_count": 30}, ]}, {"timestamp": 1543651200, "group": [ {"author_id": 11, "token_count": 4}, ]}, {"timestamp": 1551427200, "group": [ {"author_id": 0, "token_count": 8}, ]}, {"timestamp": 1556694000, "group": [ {"author_id": 0, "token_count": 135}, ]}, {"timestamp": 1575187200, "group": [ {"author_id": 0, "token_count": 12}, ]}, {"timestamp": 1593586800, "group": [ {"author_id": 2, "token_count": 13}, ]}, {"timestamp": 1596265200, "group": [ {"author_id": 7, "token_count": 17}, {"author_id": 2, "token_count": 8}, ]}, {"timestamp": 1606809600, "group": [ {"author_id": 8, "token_count": 8}, ]}, {"timestamp": 1612166400, "group": [ {"author_id": 2, "token_count": 14}, ]}, {"timestamp": 1633071600, "group": [ {"author_id": 2, "token_count": 18}, ]}, {"timestamp": 1711954800, "group": [ {"author_id": 1, "token_count": 117}, ]}, {"timestamp": 1722495600, "group": [ {"author_id": 1, "token_count": 12}, ]}, {"timestamp": 1754031600, "group": [ {"author_id": 1, "token_count": 1}, ]}, ]