Question: 中信证券2024年02月09日至2024年08月24日, 价格跌破20日三指数移动平均线有多少次？（平滑系数 alpha 取 2 / (n + 1)；从前 6n 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: TEMA = 3 * EMA1 - 3 * EMA2 + EMA3；EMA1 = EMA_n(P)；EMA2 = EMA_n(EMA1)；EMA3 = EMA_n(EMA2)
Data:
date,close,open,low
2023-08-16,24.01,23.76,23.44
2023-08-17,23.95,23.8,23.5
2023-08-18,23.97,24.26,23.97
2023-08-21,22.94,23.67,22.89
2023-08-22,23.22,23.23,22.9
2023-08-23,22.8,23.11,22.79
2023-08-24,23.56,23.01,22.95
2023-08-25,23.43,22.99,22.83
2023-08-28,23.79,25.77,23.66
2023-08-29,23.38,23.37,22.9
2023-08-30,22.56,23.38,22.53
2023-08-31,22.2,22.56,22.18
2023-09-01,22.38,22.32,22.21
2023-09-04,22.57,22.51,22.3
2023-09-05,22.38,22.47,22.24
2023-09-06,22.13,22.24,21.96
2023-09-07,22.12,22.13,22.01
2023-09-08,22.25,22.03,21.78
2023-09-11,22.6,22.3,22.11
2023-09-12,22.39,22.51,22.36
2023-09-13,22.28,22.44,22.18
2023-09-14,22.29,22.27,22.16
2023-09-15,22.05,22.34,21.95
2023-09-18,22.14,21.95,21.82
2023-09-19,22.02,22.14,21.96
2023-09-20,21.9,21.99,21.73
2023-09-21,21.73,21.82,21.72
2023-09-22,22.61,21.69,21.67
2023-09-25,21.9,22.48,21.85
2023-09-26,21.98,21.87,21.83
2023-09-27,22.03,21.91,21.91
2023-09-28,21.66,22.07,21.65
2023-10-09,21.68,21.42,21.09
2023-10-10,21.43,21.81,21.41
2023-10-11,21.51,21.58,21.45
2023-10-12,21.76,21.88,21.65
2023-10-13,21.52,21.58,21.46
2023-10-16,21.51,21.47,21.32
2023-10-17,21.95,21.59,21.51
2023-10-18,21.86,21.81,21.76
2023-10-19,21.56,21.7,21.52
2023-10-20,21.53,21.43,21.4
2023-10-23,21.18,21.36,21.05
2023-10-24,21.62,21.3,21.25
2023-10-25,21.84,21.92,21.73
2023-10-26,21.8,21.71,21.51
2023-10-27,22.03,21.66,21.4
2023-10-30,21.6,21.86,21.33
2023-10-31,21.71,21.58,21.5
2023-11-01,21.73,21.93,21.5
2023-11-02,21.53,21.73,21.48
2023-11-03,21.86,21.53,21.42
2023-11-06,22.83,22.55,22.26
2023-11-07,22.79,22.61,22.58
2023-11-08,22.58,22.78,22.41
2023-11-09,22.46,22.47,22.3
2023-11-10,22.46,22.35,22.3
2023-11-13,22.29,22.46,22.21
2023-11-14,22.62,22.31,22.3
2023-11-15,22.6,22.89,22.52
2023-11-16,22.43,22.6,22.42
2023-11-17,22.52,22.33,22.24
2023-11-20,22.35,22.51,22.07
2023-11-21,22.44,22.47,22.36
2023-11-22,22.21,22.31,22.2
2023-11-23,22.24,22.21,21.92
2023-11-24,22.05,22.19,22.03
2023-11-27,21.69,22.0,21.51
2023-11-28,21.61,21.68,21.52
2023-11-29,21.4,21.66,21.3
2023-11-30,21.45,21.4,21.28
2023-12-01,21.56,21.41,21.31
2023-12-04,21.41,21.51,21.4
2023-12-05,21.13,21.34,21.1
2023-12-06,20.95,21.09,20.95
2023-12-07,21.03,20.9,20.82
2023-12-08,20.95,21.02,20.95
2023-12-11,21.21,20.8,20.59
2023-12-12,21.13,21.07,21.03
2023-12-13,20.71,21.12,20.7
2023-12-14,20.5,20.8,20.48
2023-12-15,20.46,20.57,20.44
2023-12-18,20.44,20.4,20.32
2023-12-19,20.64,20.43,20.36
2023-12-20,20.16,20.61,20.14
2023-12-21,20.27,20.11,20.03
2023-12-22,20.28,20.2,20.02
2023-12-25,20.01,20.18,19.99
2023-12-26,19.85,20.0,19.73
2023-12-27,19.9,19.83,19.62
2023-12-28,20.37,19.83,19.81
2023-12-29,20.37,20.33,20.28
2024-01-02,20.07,20.38,20.06
2024-01-03,20.18,20.0,19.98
2024-01-04,20.0,20.12,19.84
2024-01-05,19.79,19.95,19.66
2024-01-08,19.42,19.72,19.4
2024-01-09,19.46,19.42,19.33
2024-01-10,19.46,19.45,19.26
2024-01-11,19.6,19.48,19.34
2024-01-12,19.52,19.5,19.45
2024-01-15,19.48,19.36,19.33
2024-01-16,19.58,19.45,19.22
2024-01-17,19.22,19.5,19.22
2024-01-18,19.49,19.07,18.78
2024-01-19,19.47,19.3,19.25
2024-01-22,19.13,19.4,18.92
2024-01-23,19.78,19.05,18.94
2024-01-24,20.52,19.88,19.61
2024-01-25,20.56,20.34,20.13
2024-01-26,20.83,20.4,20.31
2024-01-29,20.58,20.72,20.53
2024-01-30,20.44,20.45,20.28
2024-01-31,20.5,20.35,20.25
2024-02-01,20.44,20.3,20.28
2024-02-02,20.18,20.44,19.67
2024-02-05,20.18,20.08,19.76
2024-02-06,21.14,20.16,20.0
2024-02-07,21.18,21.02,20.9
2024-02-08,21.25,21.3,21.08
2024-02-19,20.85,21.12,20.55
2024-02-20,20.99,20.73,20.68
2024-02-21,21.38,20.9,20.81
2024-02-22,21.73,21.27,21.23
2024-02-23,21.52,21.74,21.46
2024-02-26,21.34,21.54,21.31
2024-02-27,21.46,21.32,21.23
2024-02-28,21.0,21.52,21.0
2024-02-29,21.3,21.0,20.95
2024-03-01,21.32,21.3,21.1
2024-03-04,21.16,21.33,21.06
2024-03-05,21.18,21.03,21.02
2024-03-06,21.1,21.17,21.03
2024-03-07,20.81,21.07,20.71
2024-03-08,20.8,20.8,20.71
2024-03-11,21.19,20.89,20.87
2024-03-12,21.4,21.3,21.16
2024-03-13,21.07,21.4,21.05
2024-03-14,20.8,21.01,20.71
2024-03-15,20.87,20.71,20.59
2024-03-18,21.26,20.89,20.87
2024-03-19,20.83,21.22,20.81
2024-03-20,20.84,20.77,20.74
2024-03-21,20.83,20.87,20.8
2024-03-22,20.5,20.83,20.44
2024-03-25,19.5,19.8,19.5
2024-03-26,19.6,19.41,19.41
2024-03-27,19.35,19.52,19.32
2024-03-28,19.31,19.3,19.23
2024-03-29,19.2,19.28,19.1
2024-04-01,19.41,19.3,19.3
2024-04-02,19.31,19.42,19.28
2024-04-03,19.16,19.28,19.13
2024-04-08,18.92,19.0,18.78
2024-04-09,18.93,18.9,18.88
2024-04-10,18.41,18.89,18.35
2024-04-11,18.34,18.34,18.29
2024-04-12,17.94,18.35,17.9
2024-04-15,17.74,17.5,17.26
2024-04-16,17.63,17.51,17.48
2024-04-17,18.1,17.58,17.45
2024-04-18,18.21,18.01,17.98
2024-04-19,18.13,18.1,18.06
2024-04-22,18.28,18.13,18.13
2024-04-23,18.27,18.32,18.2
2024-04-24,18.27,18.25,18.05
2024-04-25,18.18,18.25,18.11
2024-04-26,19.16,18.55,18.37
2024-04-29,19.38,19.17,19.05
2024-04-30,19.01,19.25,18.95
2024-05-06,19.21,19.25,19.12
2024-05-07,19.12,19.2,19.07
2024-05-08,18.78,19.03,18.75
2024-05-09,18.91,18.83,18.82
2024-05-10,19.06,18.94,18.85
2024-05-13,18.98,19.03,18.76
2024-05-14,19.01,19.01,18.83
2024-05-15,18.75,19.06,18.74
2024-05-16,18.78,18.8,18.74
2024-05-17,19.19,18.78,18.73
2024-05-20,19.29,19.19,19.15
2024-05-21,19.24,19.23,19.15
2024-05-22,19.31,19.2,19.15
2024-05-23,18.87,19.21,18.84
2024-05-24,18.59,18.8,18.52
2024-05-27,18.73,18.6,18.54
2024-05-28,18.62,18.68,18.6
2024-05-29,18.65,18.56,18.56
2024-05-30,18.56,18.59,18.45
2024-05-31,18.62,18.64,18.58
2024-06-03,18.43,18.55,18.35
2024-06-04,18.56,18.43,18.43
2024-06-05,18.54,18.52,18.52
2024-06-06,18.49,18.58,18.43
2024-06-07,18.38,18.55,18.2
2024-06-11,18.34,18.28,18.28
2024-06-12,18.28,18.31,18.27
2024-06-13,18.26,18.3,18.2
2024-06-14,18.63,18.24,18.2
2024-06-17,18.66,18.51,18.46
2024-06-18,18.71,18.65,18.6
2024-06-19,18.53,18.74,18.52
2024-06-20,18.38,18.53,18.36
2024-06-21,18.44,18.4,18.25
2024-06-24,18.42,18.41,18.4
2024-06-25,18.12,18.43,18.0
2024-06-26,18.4,18.09,18.02
2024-06-27,18.4,18.36,18.25
2024-06-28,18.23,18.36,18.13
2024-07-01,18.2,18.19,18.0
2024-07-02,18.19,18.15,18.13
2024-07-03,18.38,18.19,18.07
2024-07-04,18.04,18.35,18.03
2024-07-05,17.81,18.1,17.7
2024-07-08,17.5,17.7,17.45
2024-07-09,17.86,17.47,17.35
2024-07-10,18.17,17.81,17.76
2024-07-11,18.32,18.26,18.18
2024-07-12,18.36,18.33,18.23
2024-07-15,18.46,18.36,18.32
2024-07-16,18.73,18.49,18.4
2024-07-17,18.85,18.7,18.66
2024-07-18,18.97,18.86,18.64
2024-07-19,19.39,18.96,18.92
2024-07-22,20.19,19.99,19.57
2024-07-23,19.2,19.85,19.18
2024-07-24,18.88,19.07,18.76
2024-07-25,19.02,18.84,18.79
2024-07-26,19.26,18.92,18.87
2024-07-29,18.88,19.05,18.86
2024-07-30,18.92,18.82,18.74
2024-07-31,19.8,18.92,18.88
2024-08-01,19.58,19.55,19.51
2024-08-02,19.21,19.48,19.15
2024-08-05,19.12,19.12,19.09
2024-08-06,19.11,19.32,18.93
2024-08-07,18.97,19.12,18.93
2024-08-08,19.07,18.93,18.85
2024-08-09,18.89,19.14,18.88
2024-08-12,18.87,18.82,18.72
2024-08-13,19.06,18.85,18.8
2024-08-14,18.85,18.99,18.83
2024-08-15,19.15,18.84,18.81
2024-08-16,19.1,19.1,19.0
2024-08-19,19.04,19.07,19.01
2024-08-20,18.93,19.06,18.87
2024-08-21,18.92,18.9,18.79
2024-08-22,18.73,19.0,18.64
2024-08-23,19.1,18.71,18.69

Indicator data:
date,20日,close
2023-11-13,22.447224807963057,22.29
2023-11-14,22.535010946279904,22.62
2023-11-15,22.59869882963924,22.6
2023-11-16,22.60350215821361,22.43
2023-11-17,22.627524711053237,22.52
2023-11-20,22.59993460209359,22.35
2023-11-21,22.597708983104397,22.44
2023-11-22,22.53348558967661,22.21
2023-11-23,22.486276136563802,22.24
2023-11-24,22.39636177452785,22.05
2023-11-27,22.227876623693756,21.69
2023-11-28,22.06847714851462,21.61
2023-11-29,21.88371638495105,21.4
2023-11-30,21.746546673335736,21.45
2023-12-01,21.664700005005912,21.56
2023-12-04,21.5611903378187,21.41
2023-12-05,21.406603276137382,21.13
2023-12-06,21.236688482193152,20.95
2023-12-07,21.122352294006596,21.03
2023-12-08,21.012553216170076,20.95
2023-12-11,20.995004672458506,21.21
2023-12-12,20.964853583935284,21.13
2023-12-13,20.836056126052032,20.71
2023-12-14,20.68113538813548,20.5
2023-12-15,20.549399255908924,20.46
2023-12-18,20.44228225159355,20.44
2023-12-19,20.41267782187579,20.64
2023-12-20,20.270159448955788,20.16
2023-12-21,20.188344706744417,20.27
2023-12-22,20.130510930361645,20.28
2023-12-25,20.01967317259479,20.01
2023-12-26,19.8940450052759,19.85
2023-12-27,19.81101574394205,19.9
2023-12-28,19.87193774876465,20.37
2023-12-29,19.9284270399968,20.37
2024-01-02,19.902765065537597,20.07
2024-01-03,19.915753190859288,20.18
2024-01-04,19.884850787220238,20.0
2024-01-05,19.80996058775127,19.79
2024-01-08,19.657532553359005,19.42
2024-01-09,19.548268404718907,19.46
2024-01-10,19.464325634354964,19.46
2024-01-11,19.437583514280092,19.6
2024-01-12,19.400534702979254,19.52
2024-01-15,19.36523577254703,19.48
2024-01-16,19.36752361398388,19.58
2024-01-17,19.281014084592396,19.22
2024-01-18,19.28511755269019,19.49
2024-01-19,19.288068358104294,19.47
2024-01-22,19.206740246523477,19.13
2024-01-23,19.31310789357486,19.78
2024-01-24,19.59608903599448,20.52
2024-01-25,19.840763268019106,20.56
2024-01-26,20.112126159659205,20.83
2024-01-29,20.268969978261644,20.58
2024-01-30,20.359428609197312,20.44
2024-01-31,20.446790418193604,20.5
2024-02-01,20.500083248467213,20.44
2024-02-02,20.47333106211288,20.18
2024-02-05,20.448533102994478,20.18
2024-02-06,20.674575020578246,21.14
2024-02-07,20.86688496770376,21.18
2024-02-08,21.03838206388052,21.25
2024-02-19,21.070158210282266,20.85
2024-02-20,21.127317530127506,20.99
2024-02-21,21.270110695877552,21.38
2024-02-22,21.472346953774995,21.73
2024-02-23,21.577351124051773,21.52
2024-02-26,21.610046182767373,21.34
2024-02-27,21.661343487512912,21.46
2024-02-28,21.577562063578927,21.0
2024-02-29,21.580769832985535,21.3
2024-03-01,21.58310250087816,21.32
2024-03-04,21.53832387939448,21.16
2024-03-05,21.50207617571696,21.18
2024-03-06,21.44736517583974,21.1
2024-03-07,21.32356802176003,20.81
2024-03-08,21.216547204200538,20.8
2024-03-11,21.22781095931168,21.19
2024-03-12,21.289612793471186,21.4
2024-03-13,21.25265839709226,21.07
2024-03-14,21.150498405756558,20.8
2024-03-15,21.083650000092042,20.87
2024-03-18,21.129254805728106,21.26
2024-03-19,21.05435424517637,20.83
2024-03-20,20.99508216876746,20.84
2024-03-21,20.94382902394455,20.83
2024-03-22,20.81647037882308,20.5
2024-03-25,20.453532125740306,19.5
2024-03-26,20.18436178537915,19.6
2024-03-27,19.902763350794885,19.35
2024-03-28,19.666755114405117,19.31
2024-03-29,19.45104350605648,19.2
2024-04-01,19.335838772047087,19.41
2024-04-02,19.22302020131842,19.31
2024-04-03,19.09940233408007,19.16
2024-04-08,18.94382314767921,18.92
2024-04-09,18.82724227837944,18.93
2024-04-10,18.605394656452994,18.41
2024-04-11,18.414531617752598,18.34
2024-04-12,18.164041182500938,17.94
2024-04-15,17.917258672993178,17.74
2024-04-16,17.69760447204146,17.63
2024-04-17,17.651211325407207,18.1
2024-04-18,17.653315820881343,18.21
2024-04-19,17.645289891965295,18.13
2024-04-22,17.68800008433167,18.28
2024-04-23,17.73003383244825,18.27
2024-04-24,17.773300712373015,18.27
2024-04-25,17.793464327176444,18.18
2024-04-26,18.07156643424006,19.16
2024-04-29,18.36241397804612,19.38
2024-04-30,18.508748145160006,19.01
2024-05-06,18.683165445916924,19.21
2024-05-07,18.804272564956076,19.12
2024-05-08,18.815947657538576,18.78
2024-05-09,18.8594835456533,18.91
2024-05-10,18.934050948571517,19.06
2024-05-13,18.973977907192165,18.98
2024-05-14,19.01372849253463,19.01
2024-05-15,18.977880253733247,18.75
2024-05-16,18.9553485906283,18.78
2024-05-17,19.042426373206272,19.19
2024-05-20,19.13863723215453,19.29
2024-05-21,19.20293457315166,19.24
2024-05-22,19.27183914137185,19.31
2024-05-23,19.211939561043497,18.87
2024-05-24,19.0881606080313,18.59
2024-05-27,19.0215933957391,18.73
2024-05-28,18.937569369337574,18.62
2024-05-29,18.875991388427924,18.65
2024-05-30,18.802052096473673,18.56
2024-05-31,18.757244326350182,18.62
2024-06-03,18.671722787451763,18.43
2024-06-04,18.63617355833126,18.56
2024-06-05,18.602883297180988,18.54
2024-06-06,18.563769442095083,18.49
2024-06-07,18.504439269490444,18.38
2024-06-11,18.44689321142177,18.34
2024-06-12,18.3858359737413,18.28
2024-06-13,18.332488447684323,18.26
2024-06-14,18.386791393562728,18.63
2024-06-17,18.440894011250773,18.66
2024-06-18,18.49961066404064,18.71
2024-06-19,18.502049771359463,18.53
2024-06-20,18.465963912488455,18.38
2024-06-21,18.452835164976626,18.44
2024-06-24,18.43781229478969,18.42
2024-06-25,18.348621528217606,18.12
2024-06-26,18.349362998701956,18.4
2024-06-27,18.351248548977473,18.4
2024-06-28,18.309883075068868,18.23
2024-07-01,18.269448862618333,18.2
2024-07-02,18.23509762237145,18.19
2024-07-03,18.257706669141534,18.38
2024-07-04,18.18940903415573,18.04
2024-07-05,18.075260415412203,17.81
2024-07-08,17.903222269955126,17.5
2024-07-09,17.85822126524311,17.86
2024-07-10,17.9046620287376,18.17
2024-07-11,17.98427434732485,18.32
2024-07-12,18.062007926512003,18.36
2024-07-15,18.15320792815403,18.46
2024-07-16,18.298963304788533,18.73
2024-07-17,18.449757591016954,18.85
2024-07-18,18.603844865975173,18.97
2024-07-19,18.83762885337048,19.39
2024-07-22,19.234220928310705,20.19
2024-07-23,19.298232415340163,19.2
2024-07-24,19.26275542134796,18.88
2024-07-25,19.26532173109011,19.02
2024-07-26,19.32529121515101,19.26
2024-07-29,19.27149903683125,18.88
2024-07-30,19.233734471028495,18.92
2024-07-31,19.427419635926018,19.8
2024-08-01,19.525031444476483,19.58
2024-08-02,19.504536807766378,19.21
2024-08-05,19.46003054507197,19.12
2024-08-06,19.41703680705186,19.11
2024-08-07,19.34202110968152,18.97
2024-08-08,19.303559663096056,19.07
2024-08-09,19.222875349673636,18.89
2024-08-12,19.14959972338387,18.87
2024-08-13,19.13739443885633,19.06
2024-08-14,19.071758937914268,18.85
2024-08-15,19.09495812570255,19.15
2024-08-16,19.100273980878555,19.1
2024-08-19,19.088341319473603,19.04
2024-08-20,19.049398810569148,18.93
2024-08-21,19.014474733542215,18.92
2024-08-22,18.936394270440136,18.73
2024-08-23,18.968566067681326,19.1

Answer: 23.0