chart-development-activity', // id of chart wrapper
                data: {
                    columns: array,
//                                [
//                            // each columns data
//                            ['data1', 0, 5, 1, 2, 7, 5, 6, 8, 24, 7, 12, 5, 6, 3, 2, 2, 6, 30, 10, 10, 15, 14, 47, 65, 55]
//                        ],
                    type: 'area', // default type of chart
                    groups: [
                        ['data1', 'data2', 'data3']
                  