Question: 海康威视在2019年10月26日到2020年03月26日期间，收盘价突破5日双指数移动平均线共几次？（平滑系数 alpha 取 2 / (n + 1)；从前 5n 个数据开始计算；初始值用首个数据点）使用不复权价格，写出指标公式，搜集原始数据，计算得出答案，保留四位小数。注意列出原始数据和关键计算过程。
Formula: DEMA = 2 * EMA1 - EMA2；EMA1 = EMA_n(P)；EMA2 = EMA_n(EMA1)
Data:
date,close,high,low
2019-09-11,34.0,34.85,33.5
2019-09-12,34.5,34.6,33.9
2019-09-16,34.5,35.16,34.1
2019-09-17,33.6,34.29,33.31
2019-09-18,33.76,33.82,33.33
2019-09-19,34.45,34.48,33.78
2019-09-20,34.41,34.73,34.2
2019-09-23,34.04,34.42,33.61
2019-09-24,34.09,34.49,33.74
2019-09-25,33.06,33.92,33.0
2019-09-26,33.2,33.81,32.84
2019-09-27,33.19,33.5,32.92
2019-09-30,32.3,33.28,32.22
2019-10-10,30.9,31.05,29.33
2019-10-11,30.68,31.0,30.18
2019-10-14,30.97,31.4,30.76
2019-10-15,30.31,30.92,30.13
2019-10-16,30.67,31.28,30.32
2019-10-17,30.93,30.99,30.38
2019-10-18,30.44,31.09,30.25
2019-10-21,31.61,32.09,30.9
2019-10-22,31.7,32.0,31.24
2019-10-23,31.68,31.94,31.38
2019-10-24,31.83,31.88,31.5
2019-10-25,32.26,32.36,31.31
2019-10-28,32.8,32.97,32.11
2019-10-29,32.54,33.15,32.45
2019-10-30,32.53,32.83,32.24
2019-10-31,32.35,32.74,32.18
2019-11-01,32.9,33.1,32.2
2019-11-04,32.85,33.12,32.68
2019-11-05,33.3,33.75,32.96
2019-11-06,33.57,33.9,33.32
2019-11-07,33.68,33.93,33.16
2019-11-08,34.4,35.1,34.04
2019-11-11,34.2,34.75,33.89
2019-11-12,34.03,34.74,33.54
2019-11-13,34.21,34.22,33.7
2019-11-14,33.37,33.7,32.66
2019-11-15,32.8,33.54,32.79
2019-11-18,33.1,33.44,32.54
2019-11-19,33.99,34.34,33.09
2019-11-20,33.69,34.2,33.47
2019-11-21,33.46,33.75,32.9
2019-11-22,31.99,33.66,31.92
2019-11-25,31.71,32.15,30.93
2019-11-26,32.0,32.37,31.5
2019-11-27,31.79,31.98,31.41
2019-11-28,31.75,31.94,31.54
2019-11-29,31.41,31.68,31.06
2019-12-02,31.08,31.72,30.81
2019-12-03,31.03,31.05,30.56
2019-12-04,30.52,31.08,30.31
2019-12-05,31.13,31.18,30.61
2019-12-06,31.28,31.33,30.81
2019-12-09,30.69,31.28,30.51
2019-12-10,30.59,30.7,30.13
2019-12-11,31.35,31.75,30.65
2019-12-12,31.13,31.37,30.91
2019-12-13,31.9,32.24,31.51
2019-12-16,32.13,32.41,31.82
2019-12-17,32.77,33.1,31.82
2019-12-18,33.1,33.6,32.54
2019-12-19,32.57,33.25,32.17
2019-12-20,32.21,32.62,32.05
2019-12-23,31.41,32.1,31.37
2019-12-24,31.8,31.93,31.28
2019-12-25,32.21,32.52,31.66
2019-12-26,32.36,32.59,32.14
2019-12-27,32.0,32.57,31.96
2019-12-30,32.58,32.65,31.61
2019-12-31,32.74,32.88,32.32
2020-01-02,33.91,34.37,32.57
2020-01-03,34.17,34.3,33.69
2020-01-06,34.41,35.12,33.56
2020-01-07,34.4,34.96,34.17
2020-01-08,34.08,34.79,33.9
2020-01-09,34.65,34.78,34.13
2020-01-10,34.36,34.66,34.01
2020-01-13,35.23,35.5,34.5
2020-01-14,35.36,35.6,34.85
2020-01-15,36.7,37.0,35.02
2020-01-16,36.8,36.9,36.16
2020-01-17,35.67,36.55,35.6
2020-01-20,36.12,36.67,35.5
2020-01-21,34.99,36.06,34.88
2020-01-22,36.61,36.8,34.61
2020-01-23,36.0,36.82,35.12
2020-02-03,32.47,34.2,32.4
2020-02-04,34.18,34.29,32.8
2020-02-05,35.1,36.1,33.93
2020-02-06,35.5,35.73,34.41
2020-02-07,35.2,35.5,34.48
2020-02-10,35.03,35.15,34.5
2020-02-11,35.56,35.85,34.58
2020-02-12,36.0,36.11,35.03
2020-02-13,35.96,36.65,35.61
2020-02-14,35.74,36.76,35.35
2020-02-17,37.15,37.24,35.6
2020-02-18,36.83,37.08,36.26
2020-02-19,38.17,38.51,36.57
2020-02-20,38.79,39.13,37.9
2020-02-21,39.4,40.09,38.56
2020-02-24,39.05,39.59,38.51
2020-02-25,38.35,38.6,36.99
2020-02-26,36.9,38.14,36.75
2020-02-27,36.8,37.59,36.2
2020-02-28,35.0,36.7,34.88
2020-03-02,35.6,36.18,34.31
2020-03-03,35.85,36.95,35.5
2020-03-04,35.53,35.82,34.8
2020-03-05,36.18,36.5,35.34
2020-03-06,35.22,35.87,35.08
2020-03-09,33.48,34.69,33.4
2020-03-10,34.4,34.57,33.01
2020-03-11,33.86,34.75,33.8
2020-03-12,32.88,33.38,32.75
2020-03-13,32.04,32.5,30.18
2020-03-16,30.1,32.2,29.88
2020-03-17,29.02,30.6,27.91
2020-03-18,29.0,30.3,29.0
2020-03-19,29.03,29.3,27.76
2020-03-20,29.08,29.76,28.59
2020-03-23,27.18,28.18,27.17
2020-03-24,27.84,28.25,27.0
2020-03-25,28.85,29.25,28.57
2020-03-26,28.32,28.85,28.14

Indicator data:
date,5日,close
2019-09-24,34.1552136361327,34.09
2019-09-25,33.55123135023455,33.06
2019-09-26,33.30599129536486,33.2
2019-09-27,33.17966334927113,33.19
2019-09-30,32.6302216677549,32.3
2019-10-10,31.571556290663807,30.9
2019-10-11,30.904198757438458,30.68
2019-10-14,30.7437955474007,30.97
2019-10-15,30.33097239322828,30.31
2019-10-16,30.345165169904064,30.67
2019-10-17,30.532010273992846,30.93
2019-10-18,30.38705140092199,30.44
2019-10-21,30.978508412788052,31.61
2019-10-22,31.36154392775208,31.7
2019-10-23,31.558277053541413,31.68
2019-10-24,31.742572103498738,31.83
2019-10-25,32.07308411420213,32.26
2019-10-28,32.54074677293674,32.8
2019-10-29,32.63295831315915,32.54
2019-10-30,32.65805696290698,32.53
2019-10-31,32.55498336691635,32.35
2019-11-01,32.791952505707584,32.9
2019-11-04,32.88149962231395,32.85
2019-11-05,33.1677983827708,33.3
2019-11-06,33.4597313448882,33.57
2019-11-07,33.66284251195279,33.68
2019-11-08,34.15502052932007,34.4
2019-11-11,34.2898751448922,34.2
2019-11-12,34.24537995793624,34.03
2019-11-13,34.30167321285178,34.21
2019-11-14,33.84983985805293,33.37
2019-11-15,33.27904282724756,32.8
2019-11-18,33.13879494386211,33.1
2019-11-19,33.5665964463728,33.99
2019-11-20,33.63710862011389,33.69
2019-11-21,33.54654640620839,33.46
2019-11-22,32.680013599338345,31.99
2019-11-25,32.06266417413629,31.71
2019-11-26,31.910212854698003,32.0
2019-11-27,31.73576639553677,31.79
2019-11-28,31.6420383697388,31.75
2019-11-29,31.42348831719095,31.41
2019-12-02,31.14152292525958,31.08
2019-12-03,30.981591314927904,31.03
2019-12-04,30.63255600867739,30.52
2019-12-05,30.803811871601898,31.13
2019-12-06,30.999502047168136,31.28
2019-12-09,30.789864119956675,30.69
2019-12-10,30.63004013897861,30.59
2019-12-11,30.976780576435186,31.35
2019-12-12,31.050134040145302,31.13
2019-12-13,31.519387352889215,31.9
2019-12-16,31.898012452676596,32.13
2019-12-17,32.44762222450693,32.77
2019-12-18,32.91104632037519,33.1
2019-12-19,32.843562994052725,32.57
2019-12-20,32.583174516347995,32.21
2019-12-23,31.981538024440553,31.41
2019-12-24,31.867306469766078,31.8
2019-12-25,32.03683617104786,32.21
2019-12-26,32.21475646372333,32.36
2019-12-27,32.10997032005428,32.0
2019-12-30,32.37340199841756,32.58
2019-12-31,32.60232696675486,32.74
2020-01-02,33.36936840082088,33.91
2020-01-03,33.91479032698125,34.17
2020-01-06,34.31889003561015,34.41
2020-01-07,34.50305767993298,34.4
2020-01-08,34.39568133519502,34.08
2020-01-09,34.62954947806759,34.65
2020-01-10,34.57465204400344,34.36
2020-01-13,35.00973629064123,35.23
2020-01-14,35.29980303463121,35.36
2020-01-15,36.17985458366774,36.7
2020-01-16,36.684338096165334,36.8
2020-01-17,36.29362653547923,35.67
2020-01-20,36.3006851156766,36.12
2020-01-21,35.65596836068914,34.99
2020-01-22,36.19543109617369,36.61
2020-01-23,36.14236663459198,36.0
2020-02-03,34.14185280337877,32.47
2020-02-04,34.016974122464156,34.18
2020-02-05,34.49069758400608,35.1
2020-02-06,34.991163835357376,35.5
2020-02-07,35.10346396536269,35.2
2020-02-10,35.0696569158803,35.03
2020-02-11,35.34466968101254,35.56
2020-02-12,35.735267612069926,36.0
2020-02-13,35.916059180087665,35.96
2020-02-14,35.879071079196905,35.74
2020-02-17,36.630512914445816,37.15
2020-02-18,36.84443007295134,36.83
2020-02-19,37.68234546862587,38.17
2020-02-20,38.45338059241168,38.79
2020-02-21,39.17235391493742,39.4
2020-02-24,39.32274717884469,39.05
2020-02-25,38.97039449848741,38.35
2020-02-26,37.93930502960779,36.9
2020-02-27,37.31000915126042,36.8
2020-02-28,35.97365441074377,35.0
2020-03-02,35.6048684804315,35.6
2020-03-03,35.579311569133665,35.85
2020-03-04,35.42025165643089,35.53
2020-03-05,35.722863733404,36.18
2020-03-06,35.37481757501382,35.22
2020-03-09,34.236261774061106,33.48
2020-03-10,34.15731899874199,34.4
2020-03-11,33.84919787651772,33.86
2020-03-12,33.169010947027196,32.88
2020-03-13,32.36792665091727,32.04
2020-03-16,30.89767511365539,30.1
2020-03-17,29.5555994177995,29.02
2020-03-18,28.88849917321916,29.0
2020-03-19,28.621065823047992,29.03
2020-03-20,28.575421464855474,29.08
2020-03-23,27.555643809563747,27.18
2020-03-24,27.427337761704784,27.84
2020-03-25,27.977275322466937,28.85
2020-03-26,28.024216980309347,28.32

Answer: 23.0