Question: 在2021年11月21日-2022年02月15日，泸州老窖的价格有多少次跌破10日简单移动平均线？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
2021-11-09,226.97,226.57,231.0
2021-11-10,219.05,216.1,229.05
2021-11-11,218.8,213.0,218.93
2021-11-12,210.0,206.7,219.77
2021-11-15,211.46,208.8,212.0
2021-11-16,221.8,212.97,214.0
2021-11-17,222.63,219.23,220.51
2021-11-18,223.15,219.45,221.7
2021-11-19,230.53,221.05,221.05
2021-11-22,227.48,226.58,230.52
2021-11-23,226.05,224.23,226.0
2021-11-24,234.95,227.41,228.0
2021-11-25,234.94,234.2,236.0
2021-11-26,233.68,231.01,234.95
2021-11-29,235.5,229.5,231.3
2021-11-30,230.05,229.46,234.8
2021-12-01,232.11,229.0,233.29
2021-12-02,237.18,231.0,232.11
2021-12-03,252.3,238.2,238.2
2021-12-06,244.38,244.1,254.5
2021-12-07,246.47,245.0,247.13
2021-12-08,252.87,243.51,245.03
2021-12-09,253.3,252.0,254.97
2021-12-10,252.17,247.33,250.79
2021-12-13,254.43,254.3,257.0
2021-12-14,260.4,252.2,253.16
2021-12-15,261.22,255.8,260.38
2021-12-16,257.88,249.0,261.08
2021-12-17,248.51,247.6,256.81
2021-12-20,247.65,246.21,246.97
2021-12-21,248.0,242.9,246.76
2021-12-22,252.28,247.01,248.7
2021-12-23,263.0,251.51,252.75
2021-12-24,261.2,259.11,262.99
2021-12-27,261.19,257.11,259.39
2021-12-28,260.8,259.29,260.74
2021-12-29,243.0,241.93,262.07
2021-12-30,254.0,245.11,245.33
2021-12-31,253.87,248.3,254.0
2022-01-04,250.64,243.06,253.0
2022-01-05,247.87,244.22,248.0
2022-01-06,241.75,235.6,247.46
2022-01-07,236.68,232.33,239.98
2022-01-10,237.2,227.75,233.0
2022-01-11,231.0,230.02,236.33
2022-01-12,230.16,228.29,233.0
2022-01-13,224.0,223.58,230.6
2022-01-14,227.15,224.0,224.0
2022-01-17,229.68,222.26,226.9
2022-01-18,235.72,227.6,229.97
2022-01-19,229.89,226.66,236.1
2022-01-20,236.2,228.0,229.55
2022-01-21,236.85,233.5,234.86
2022-01-24,232.9,230.86,234.0
2022-01-25,226.99,226.99,232.41
2022-01-26,228.03,222.22,226.99
2022-01-27,224.5,224.08,229.6
2022-01-28,216.31,214.21,225.24
2022-02-07,214.45,212.0,221.5
2022-02-08,208.36,200.0,214.01
2022-02-09,214.18,205.18,208.1
2022-02-10,213.4,207.41,213.0
2022-02-11,216.18,209.28,212.52
2022-02-14,219.4,213.0,214.0
2022-02-15,224.01,219.12,221.76

Indicator data:
date,10日,close
2021-11-22,221.18699999999998,227.48
2021-11-23,221.09499999999997,226.05
2021-11-24,222.685,234.95
2021-11-25,224.29900000000004,234.94
2021-11-26,226.667,233.68
2021-11-29,229.071,235.5
2021-11-30,229.89600000000002,230.05
2021-12-01,230.84399999999997,232.11
2021-12-02,232.247,237.18
2021-12-03,234.42399999999998,252.3
2021-12-06,236.11399999999998,244.38
2021-12-07,238.15600000000003,246.47
2021-12-08,239.948,252.87
2021-12-09,241.78400000000002,253.3
2021-12-10,243.63299999999998,252.17
2021-12-13,245.526,254.43
2021-12-14,248.56099999999998,260.4
2021-12-15,251.47200000000004,261.22
2021-12-16,253.542,257.88
2021-12-17,253.163,248.51
2021-12-20,253.49,247.65
2021-12-21,253.64299999999997,248.0
2021-12-22,253.584,252.28
2021-12-23,254.554,263.0
2021-12-24,255.45700000000002,261.2
2021-12-27,256.133,261.19
2021-12-28,256.17300000000006,260.8
2021-12-29,254.35100000000003,243.0
2021-12-30,253.96300000000002,254.0
2021-12-31,254.49900000000002,253.87
2022-01-04,254.798,250.64
2022-01-05,254.785,247.87
2022-01-06,253.73199999999997,241.75
2022-01-07,251.1,236.68
2022-01-10,248.7,237.2
2022-01-11,245.68099999999998,231.0
2022-01-12,242.61700000000002,230.16
2022-01-13,240.717,224.0
2022-01-14,238.032,227.15
2022-01-17,235.613,229.68
2022-01-18,234.121,235.72
2022-01-19,232.323,229.89
2022-01-20,231.76800000000003,236.2
2022-01-21,231.785,236.85
2022-01-24,231.35500000000002,232.9
2022-01-25,230.954,226.99
2022-01-26,230.74100000000004,228.03
2022-01-27,230.79100000000003,224.5
2022-01-28,229.70700000000002,216.31
2022-02-07,228.18400000000003,214.45
2022-02-08,225.448,208.36
2022-02-09,223.877,214.18
2022-02-10,221.59700000000004,213.4
2022-02-11,219.53000000000003,216.18
2022-02-14,218.18,219.4
2022-02-15,217.882,224.01

Answer: 5.0