Question: 国泰海通在2022年02月16日到2022年09月22日期间，收盘价跌破20日简单移动平均线共几次？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: SMA_n = 1 / n * \sum_{i=0}^{n-1} P_{t-i}
Data:
date,close,low,open
2022-01-13,17.79,17.78,18.04
2022-01-14,17.24,17.17,17.69
2022-01-17,17.29,17.15,17.22
2022-01-18,17.48,17.22,17.3
2022-01-19,17.85,17.44,17.44
2022-01-20,18.54,17.85,17.85
2022-01-21,18.37,18.28,18.4
2022-01-24,18.37,18.14,18.28
2022-01-25,17.95,17.92,18.28
2022-01-26,18.62,18.0,18.0
2022-01-27,18.1,17.99,18.39
2022-01-28,17.63,17.55,18.18
2022-02-07,17.98,17.76,17.88
2022-02-08,18.41,17.88,17.91
2022-02-09,18.31,18.2,18.37
2022-02-10,18.37,18.19,18.29
2022-02-11,18.35,18.25,18.29
2022-02-14,17.66,17.55,18.2
2022-02-15,17.65,17.51,17.68
2022-02-16,17.63,17.57,17.73
2022-02-17,17.41,17.35,17.59
2022-02-18,17.59,17.26,17.3
2022-02-21,17.59,17.44,17.59
2022-02-22,17.2,17.12,17.41
2022-02-23,17.3,17.16,17.2
2022-02-24,16.7,16.6,17.15
2022-02-25,16.7,16.63,16.8
2022-02-28,16.69,16.57,16.7
2022-03-01,16.75,16.62,16.74
2022-03-02,16.7,16.61,16.64
2022-03-03,16.79,16.72,16.78
2022-03-04,16.64,16.55,16.69
2022-03-07,16.26,16.24,16.58
2022-03-08,15.9,15.89,16.35
2022-03-09,15.49,15.12,15.94
2022-03-10,15.48,15.46,15.79
2022-03-11,15.69,15.0,15.25
2022-03-14,15.39,15.37,15.42
2022-03-15,14.84,14.83,15.36
2022-03-16,15.5,14.8,15.02
2022-03-17,15.43,15.4,15.7
2022-03-18,15.56,15.4,15.44
2022-03-21,15.48,15.37,15.59
2022-03-22,15.55,15.36,15.4
2022-03-23,15.55,15.44,15.56
2022-03-24,15.41,15.4,15.48
2022-03-25,15.34,15.32,15.43
2022-03-28,15.39,15.15,15.25
2022-03-29,15.33,15.28,15.4
2022-03-30,15.67,15.37,15.37
2022-03-31,15.71,15.6,15.65
2022-04-01,15.9,15.6,15.64
2022-04-06,15.91,15.78,15.82
2022-04-07,15.6,15.6,15.9
2022-04-08,15.86,15.54,15.65
2022-04-11,15.45,15.38,15.79
2022-04-12,15.79,15.38,15.45
2022-04-13,15.65,15.64,15.75
2022-04-14,15.85,15.72,15.77
2022-04-15,15.83,15.7,15.73
2022-04-18,15.54,15.44,15.7
2022-04-19,15.44,15.38,15.54
2022-04-20,15.3,15.25,15.47
2022-04-21,15.21,15.16,15.25
2022-04-22,15.23,15.17,15.17
2022-04-25,14.71,14.7,14.92
2022-04-26,14.26,14.19,14.74
2022-04-27,14.36,14.09,14.15
2022-04-28,14.15,13.97,14.3
2022-04-29,14.6,14.24,14.54
2022-05-05,14.33,14.32,14.39
2022-05-06,14.08,14.06,14.11
2022-05-09,14.04,13.94,14.02
2022-05-10,14.13,13.83,13.91
2022-05-11,14.19,14.1,14.12
2022-05-12,14.14,14.07,14.13
2022-05-13,14.24,14.15,14.2
2022-05-16,14.16,14.13,14.35
2022-05-17,14.2,14.06,14.17
2022-05-18,14.2,14.15,14.25
2022-05-19,14.17,14.02,14.09
2022-05-20,14.38,14.21,14.22
2022-05-23,14.4,14.25,14.39
2022-05-24,14.1,14.08,14.39
2022-05-25,14.18,14.07,14.11
2022-05-26,14.34,14.11,14.23
2022-05-27,14.43,14.32,14.4
2022-05-30,14.42,14.32,14.41
2022-05-31,14.49,14.34,14.42
2022-06-01,14.42,14.37,14.51
2022-06-02,14.48,14.33,14.42
2022-06-06,14.67,14.39,14.42
2022-06-07,14.66,14.6,14.65
2022-06-08,14.79,14.64,14.68
2022-06-09,14.75,14.67,14.8
2022-06-10,14.98,14.59,14.67
2022-06-13,14.78,14.68,14.82
2022-06-14,15.3,14.53,14.66
2022-06-15,15.67,15.35,15.35
2022-06-16,15.19,15.18,15.67
2022-06-17,15.16,14.94,15.08
2022-06-20,15.01,15.01,15.13
2022-06-21,15.08,14.93,15.04
2022-06-22,14.88,14.87,15.07
2022-06-23,15.23,14.85,14.85
2022-06-24,15.2,15.12,15.24
2022-06-27,15.17,15.13,15.31
2022-06-28,15.26,15.07,15.14
2022-06-29,15.12,15.11,15.27
2022-06-30,15.2,15.12,15.12
2022-07-01,15.1,15.06,15.18
2022-07-04,15.15,14.96,15.1
2022-07-05,15.08,15.0,15.15
2022-07-06,14.98,14.96,15.06
2022-07-07,15.09,15.01,15.06
2022-07-08,15.17,15.13,15.15
2022-07-11,15.14,15.12,15.17
2022-07-12,15.22,15.14,15.14
2022-07-13,15.18,15.15,15.22
2022-07-14,15.0,14.93,15.15
2022-07-15,13.92,13.92,14.4
2022-07-18,14.25,13.94,14.01
2022-07-19,14.36,14.15,14.29
2022-07-20,14.38,14.34,14.36
2022-07-21,14.25,14.24,14.37
2022-07-22,14.41,14.26,14.33
2022-07-25,14.49,14.33,14.41
2022-07-26,14.47,14.44,14.47
2022-07-27,14.37,14.36,14.47
2022-07-28,14.53,14.46,14.46
2022-07-29,14.45,14.41,14.51
2022-08-01,14.37,14.27,14.44
2022-08-02,14.08,13.89,14.26
2022-08-03,13.95,13.92,14.06
2022-08-04,14.05,14.01,14.08
2022-08-05,14.27,14.01,14.12
2022-08-08,14.29,14.2,14.23
2022-08-09,14.26,14.25,14.26
2022-08-10,14.25,14.18,14.29
2022-08-11,14.68,14.29,14.31
2022-08-12,14.6,14.53,14.55
2022-08-15,14.61,14.51,14.56
2022-08-16,14.56,14.5,14.61
2022-08-17,14.71,14.51,14.58
2022-08-18,14.58,14.57,14.63
2022-08-19,14.56,14.56,14.58
2022-08-22,14.6,14.48,14.51
2022-08-23,14.66,14.54,14.62
2022-08-24,14.48,14.45,14.64
2022-08-25,14.73,14.5,14.5
2022-08-26,14.72,14.63,14.78
2022-08-29,14.68,14.53,14.65
2022-08-30,14.68,14.61,14.75
2022-08-31,14.79,14.65,14.69
2022-09-01,14.73,14.71,14.77
2022-09-02,14.62,14.55,14.68
2022-09-05,14.84,14.57,14.61
2022-09-06,14.92,14.81,14.86
2022-09-07,14.88,14.82,14.9
2022-09-08,14.84,14.82,14.9
2022-09-09,15.07,14.83,14.87
2022-09-13,14.97,14.93,15.12
2022-09-14,14.81,14.71,14.8
2022-09-15,14.87,14.71,14.85
2022-09-16,14.12,14.11,14.84
2022-09-19,14.11,14.03,14.12
2022-09-20,14.18,14.12,14.15
2022-09-21,14.21,14.08,14.18
2022-09-22,14.25,14.16,14.18

Indicator data:
date,20日,close
2022-02-16,17.979499999999998,17.63
2022-02-17,17.9605,17.41
2022-02-18,17.978,17.59
2022-02-21,17.993000000000002,17.59
2022-02-22,17.979,17.2
2022-02-23,17.951500000000003,17.3
2022-02-24,17.8595,16.7
2022-02-25,17.776,16.7
2022-02-28,17.692,16.69
2022-03-01,17.631999999999998,16.75
2022-03-02,17.536,16.7
2022-03-03,17.470499999999998,16.79
2022-03-04,17.421,16.64
2022-03-07,17.335,16.26
2022-03-08,17.2095,15.9
2022-03-09,17.0685,15.49
2022-03-10,16.924,15.48
2022-03-11,16.791000000000004,15.69
2022-03-14,16.677500000000002,15.39
2022-03-15,16.537,14.84
2022-03-16,16.430500000000002,15.5
2022-03-17,16.3315,15.43
2022-03-18,16.23,15.56
2022-03-21,16.1245,15.48
2022-03-22,16.042,15.55
2022-03-23,15.9545,15.55
2022-03-24,15.89,15.41
2022-03-25,15.822,15.34
2022-03-28,15.757000000000001,15.39
2022-03-29,15.686000000000002,15.33
2022-03-30,15.6345,15.67
2022-03-31,15.5805,15.71
2022-04-01,15.5435,15.9
2022-04-06,15.526,15.91
2022-04-07,15.511000000000001,15.6
2022-04-08,15.529499999999999,15.86
2022-04-11,15.528000000000002,15.45
2022-04-12,15.532999999999998,15.79
2022-04-13,15.546000000000001,15.65
2022-04-14,15.5965,15.85
2022-04-15,15.613,15.83
2022-04-18,15.618500000000001,15.54
2022-04-19,15.6125,15.44
2022-04-20,15.6035,15.3
2022-04-21,15.586499999999997,15.21
2022-04-22,15.570500000000001,15.23
2022-04-25,15.535499999999999,14.71
2022-04-26,15.4815,14.26
2022-04-27,15.429999999999998,14.36
2022-04-28,15.371,14.15
2022-04-29,15.317499999999999,14.6
2022-05-05,15.248500000000002,14.33
2022-05-06,15.157500000000002,14.08
2022-05-09,15.063999999999998,14.04
2022-05-10,14.990499999999997,14.13
2022-05-11,14.907000000000002,14.19
2022-05-12,14.841500000000002,14.14
2022-05-13,14.764000000000001,14.24
2022-05-16,14.689499999999999,14.16
2022-05-17,14.607,14.2
2022-05-18,14.525500000000003,14.2
2022-05-19,14.456999999999999,14.17
2022-05-20,14.404,14.38
2022-05-23,14.359,14.4
2022-05-24,14.3035,14.1
2022-05-25,14.251,14.18
2022-05-26,14.232500000000002,14.34
2022-05-27,14.241000000000003,14.43
2022-05-30,14.244,14.42
2022-05-31,14.261,14.49
2022-06-01,14.252,14.42
2022-06-02,14.259500000000003,14.48
2022-06-06,14.288999999999998,14.67
2022-06-07,14.320000000000002,14.66
2022-06-08,14.352999999999998,14.79
2022-06-09,14.380999999999997,14.75
2022-06-10,14.422999999999998,14.98
2022-06-13,14.45,14.78
2022-06-14,14.507,15.3
2022-06-15,14.5805,15.67
2022-06-16,14.629999999999999,15.19
2022-06-17,14.6795,15.16
2022-06-20,14.711000000000002,15.01
2022-06-21,14.745,15.08
2022-06-22,14.784,14.88
2022-06-23,14.836500000000001,15.23
2022-06-24,14.879499999999998,15.2
2022-06-27,14.9165,15.17
2022-06-28,14.9585,15.26
2022-06-29,14.99,15.12
2022-06-30,15.029,15.2
2022-07-01,15.059999999999999,15.1
2022-07-04,15.084,15.15
2022-07-05,15.104999999999999,15.08
2022-07-06,15.114500000000001,14.98
2022-07-07,15.131499999999999,15.09
2022-07-08,15.141,15.17
2022-07-11,15.158999999999997,15.14
2022-07-12,15.155000000000001,15.22
2022-07-13,15.130500000000001,15.18
2022-07-14,15.121,15.0
2022-07-15,15.059000000000001,13.92
2022-07-18,15.021,14.25
2022-07-19,14.985,14.36
2022-07-20,14.959999999999999,14.38
2022-07-21,14.910999999999998,14.25
2022-07-22,14.871500000000001,14.41
2022-07-25,14.8375,14.49
2022-07-26,14.797999999999998,14.47
2022-07-27,14.760499999999999,14.37
2022-07-28,14.727,14.53
2022-07-29,14.6945,14.45
2022-08-01,14.6555,14.37
2022-08-02,14.605500000000001,14.08
2022-08-03,14.553999999999998,13.95
2022-08-04,14.502,14.05
2022-08-05,14.456999999999999,14.27
2022-08-08,14.4145,14.29
2022-08-09,14.366499999999998,14.26
2022-08-10,14.319999999999999,14.25
2022-08-11,14.303999999999998,14.68
2022-08-12,14.338,14.6
2022-08-15,14.355999999999998,14.61
2022-08-16,14.366,14.56
2022-08-17,14.382500000000002,14.71
2022-08-18,14.399000000000001,14.58
2022-08-19,14.4065,14.56
2022-08-22,14.412,14.6
2022-08-23,14.4215,14.66
2022-08-24,14.427000000000001,14.48
2022-08-25,14.437000000000001,14.73
2022-08-26,14.4505,14.72
2022-08-29,14.466,14.68
2022-08-30,14.496,14.68
2022-08-31,14.538,14.79
2022-09-01,14.572,14.73
2022-09-02,14.589500000000001,14.62
2022-09-05,14.617,14.84
2022-09-06,14.65,14.92
2022-09-07,14.6815,14.88
2022-09-08,14.6895,14.84
2022-09-09,14.713,15.07
2022-09-13,14.731,14.97
2022-09-14,14.743500000000001,14.81
2022-09-15,14.751499999999998,14.87
2022-09-16,14.7285,14.12
2022-09-19,14.706,14.11
2022-09-20,14.684999999999999,14.18
2022-09-21,14.6625,14.21
2022-09-22,14.651,14.25

Answer: 7.0