Question: 金山办公从2021年02月07日到2021年06月18日，5、10、20日加权移动平均线呈空头排列的天数比例是多少？（单位：%）（权重取 1, 2, ..., n）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: WMA_n = \sum_{i=0}^{n-1} (n-i) * P_{t-i} / \sum_{j=1}^{n} j
Data:
date,close,low,high,open
2021-01-12,406.5,394.97,410.0,399.5
2021-01-13,394.01,384.75,406.0,405.58
2021-01-14,401.2,386.9,420.0,390.0
2021-01-15,414.96,393.0,417.79,397.98
2021-01-18,460.0,408.3,478.8,415.3
2021-01-19,428.55,424.0,454.6,451.5
2021-01-20,460.8,428.62,464.0,434.99
2021-01-21,469.1,450.55,474.4,460.8
2021-01-22,491.77,447.0,493.0,461.33
2021-01-25,485.0,480.95,521.0,490.0
2021-01-26,450.35,450.1,484.5,484.5
2021-01-27,433.99,428.3,459.0,454.89
2021-01-28,412.0,406.0,435.0,428.0
2021-01-29,415.0,412.01,432.17,420.99
2021-02-01,414.0,411.1,429.0,416.0
2021-02-02,420.6,411.0,424.99,411.1
2021-02-03,446.49,419.0,458.88,420.0
2021-02-04,419.65,415.0,440.0,439.0
2021-02-05,420.96,415.0,430.0,423.0
2021-02-08,408.0,393.0,420.0,420.0
2021-02-09,424.0,400.01,428.0,408.0
2021-02-10,422.22,407.0,432.2,419.91
2021-02-18,408.16,407.5,433.0,427.0
2021-02-19,399.01,387.76,407.0,407.0
2021-02-22,374.0,374.0,400.5,397.0
2021-02-23,375.77,368.6,385.0,368.62
2021-02-24,355.9,350.0,385.09,381.0
2021-02-25,360.8,351.0,364.47,362.0
2021-02-26,336.0,335.05,354.0,354.0
2021-03-01,331.01,330.1,344.3,341.94
2021-03-02,333.3,329.06,342.9,334.98
2021-03-03,338.21,329.01,340.01,333.3
2021-03-04,320.11,318.9,336.99,336.92
2021-03-05,329.99,312.22,334.88,313.0
2021-03-08,308.39,306.59,334.87,331.17
2021-03-09,297.84,294.0,314.3,309.27
2021-03-10,309.0,301.0,313.13,305.0
2021-03-11,319.87,308.01,325.88,310.64
2021-03-12,329.7,317.91,335.2,320.9
2021-03-15,296.44,290.58,325.26,325.26
2021-03-16,298.8,286.5,305.0,297.71
2021-03-17,304.64,294.65,309.46,299.0
2021-03-18,306.62,303.0,318.9,307.5
2021-03-19,307.97,297.21,307.97,298.9
2021-03-22,302.86,301.66,310.71,305.5
2021-03-23,296.0,295.0,305.2,302.07
2021-03-24,306.08,295.0,311.88,295.5
2021-03-25,325.22,300.22,327.58,302.19
2021-03-26,338.0,324.8,339.36,325.0
2021-03-29,324.12,320.66,341.0,341.0
2021-03-30,329.95,321.0,334.53,321.6
2021-03-31,324.0,320.21,333.75,325.1
2021-04-01,331.02,320.0,335.2,324.99
2021-04-02,337.59,331.8,338.94,333.0
2021-04-06,329.36,325.7,340.54,337.59
2021-04-07,318.86,316.89,331.0,331.0
2021-04-08,325.89,316.06,327.0,319.0
2021-04-09,316.36,316.09,324.99,322.34
2021-04-12,300.6,297.17,319.79,315.0
2021-04-13,307.39,299.13,312.99,305.11
2021-04-14,306.6,303.17,313.99,307.48
2021-04-15,303.39,300.0,312.0,303.56
2021-04-16,305.11,300.11,311.11,306.77
2021-04-19,322.96,303.0,325.5,303.23
2021-04-20,322.0,318.0,327.45,318.0
2021-04-21,336.6,315.0,338.91,315.0
2021-04-22,328.01,319.32,334.33,334.15
2021-04-23,334.0,324.01,337.3,325.0
2021-04-26,320.26,320.0,338.28,333.01
2021-04-27,320.82,317.01,326.56,320.93
2021-04-28,334.39,315.6,335.0,319.73
2021-04-29,346.23,328.0,349.11,334.3
2021-04-30,380.0,359.0,385.0,373.0
2021-05-06,377.9,365.13,382.59,375.0
2021-05-07,356.5,356.46,383.77,373.06
2021-05-10,348.22,344.0,356.5,355.0
2021-05-11,345.1,338.22,349.86,342.5
2021-05-12,352.41,343.5,356.97,345.1
2021-05-13,341.57,336.94,350.0,346.31
2021-05-14,355.68,340.02,356.0,340.02
2021-05-17,373.61,353.5,376.0,356.0
2021-05-18,367.82,364.3,373.83,373.83
2021-05-19,381.21,364.05,391.29,365.0
2021-05-20,381.0,376.0,389.98,381.2
2021-05-21,375.76,367.0,390.0,386.3
2021-05-24,373.7,364.01,377.0,375.0
2021-05-25,397.0,373.7,398.87,373.7
2021-05-26,384.0,377.67,400.96,396.99
2021-05-27,387.35,377.0,394.85,380.58
2021-05-28,375.13,370.88,392.44,385.99
2021-05-31,392.0,377.0,392.0,377.63
2021-06-01,405.5,390.0,409.98,394.0
2021-06-02,395.49,393.2,406.99,405.5
2021-06-03,384.37,382.0,398.51,395.49
2021-06-04,379.9,376.1,389.58,380.52
2021-06-07,385.0,376.62,388.88,382.98
2021-06-08,394.0,381.15,399.9,386.12
2021-06-09,412.8,391.5,414.97,392.81
2021-06-10,409.77,403.01,422.0,410.2
2021-06-11,420.77,405.0,438.0,412.51
2021-06-15,417.8,414.54,435.3,424.3
2021-06-16,387.63,380.01,420.0,419.96
2021-06-17,392.86,382.98,393.88,388.33
2021-06-18,388.79,376.0,397.03,392.16

Indicator data:
date,5日,10日,20日
2021-02-08,419.758,421.0763636363636,432.15804761904764
2021-02-09,420.04466666666667,421.05745454545456,431.3345714285714
2021-02-10,419.5113333333333,421.194,430.25823809523814
2021-02-18,415.90933333333334,418.9881818181818,427.7085238095238
2021-02-19,410.02333333333337,415.18854545454536,424.25423809523807
2021-02-22,397.264,407.1323636363636,418.494
2021-02-23,387.36133333333333,400.1252727272728,413.3118571428571
2021-02-24,374.0506666666667,390.3205454545455,406.48866666666663
2021-02-25,366.79466666666667,383.05381818181814,400.6316666666667
2021-02-26,354.4293333333333,372.348,392.92847619047615
2021-03-01,344.60133333333334,362.2796363636363,385.49180952380954
2021-03-02,338.4026666666667,354.0274545454546,379.0065238095238
2021-03-03,336.67199999999997,348.31709090909095,373.54623809523804
2021-03-04,330.08733333333333,340.8432727272727,366.8182380952381
2021-03-05,329.50866666666667,336.7667272727272,361.4687619047619
2021-03-08,322.1306666666667,330.01781818181826,354.46695238095236
2021-03-09,312.74399999999997,322.5436363636364,346.96328571428575
2021-03-10,309.4413333333333,318.51545454545453,341.1070476190476
2021-03-11,311.7093333333333,317.3163636363637,336.94076190476187
2021-03-12,317.27000000000004,318.6487272727273,334.1858095238095
2021-03-15,311.7633333333333,314.04836363636366,328.69780952380955
2021-03-16,307.84000000000003,310.5056363636363,323.9658095238096
2021-03-17,305.7993333333333,308.652,320.38619047619045
2021-03-18,304.7093333333333,307.76872727272723,317.5550476190475
2021-03-19,304.9526666666667,307.3761818181818,315.3359999999999
2021-03-22,304.9413333333334,306.45490909090915,313.0638095238095
2021-03-23,302.2153333333333,304.38690909090906,310.4770476190476
2021-03-24,303.036,304.1850909090909,309.2301428571428
2021-03-25,310.14066666666673,307.5163636363636,310.04333333333335
2021-03-26,320.26533333333333,313.074,312.2430952380953
2021-03-29,323.7613333333333,315.9570909090909,313.1114285714285
2021-03-30,327.78333333333336,319.3969090909091,314.5678095238095
2021-03-31,327.5586666666667,321.1885454545454,315.4734761904762
2021-04-01,328.4793333333334,323.9045454545454,317.1153809523809
2021-04-02,331.20333333333326,327.3714545454545,319.3310476190476
2021-04-06,331.21133333333336,328.80345454545454,320.7267142857143
2021-04-07,327.37,327.8445454545455,321.0225238095239
2021-04-08,326.61133333333333,327.7481818181818,321.88776190476193
2021-04-09,322.55,325.558909090909,321.76495238095237
2021-04-12,314.2126666666667,320.66527272727274,320.1579047619048
2021-04-13,310.6046666666667,317.6861818181818,319.33609523809525
2021-04-14,308.19800000000004,314.8676363636364,318.38690476190476
2021-04-15,305.53866666666664,311.88999999999993,317.0948571428571
2021-04-16,304.9526666666667,309.5998181818182,315.9725714285714
2021-04-19,311.06666666666666,311.0261818181818,316.55747619047617
2021-04-20,315.37,312.544,316.9795714285714
2021-04-21,323.566,316.85018181818185,318.70099999999996
2021-04-22,326.8986666666667,319.272,319.411
2021-04-23,330.5866666666667,322.7443636363637,320.5870476190476
2021-04-26,327.76866666666666,323.3978181818182,320.41271428571434
2021-04-27,325.31733333333335,323.7956363636364,320.37619047619046
2021-04-28,327.46799999999996,326.41654545454537,321.6477619047619
2021-04-29,333.7126666666667,330.6849090909091,324.0258095238096
2021-04-30,349.9993333333333,340.3143636363637,329.51419047619055
2021-05-06,362.51933333333335,348.20036363636365,334.5693333333333
2021-05-07,364.06333333333333,351.1965454545454,337.39442857142853
2021-05-10,360.46866666666665,352.06,339.3017142857143
2021-05-11,354.91200000000003,352.14490909090904,340.77204761904767
2021-05-12,351.86733333333336,353.2481818181818,342.8470952380952
2021-05-13,347.04866666666663,352.04581818181816,343.71809523809526
2021-05-14,349.3553333333333,353.02145454545456,345.7378095238095
2021-05-17,357.6933333333334,356.6232727272727,349.2351904761905
2021-05-18,362.40866666666665,358.4592727272727,351.8620476190476
2021-05-19,370.0726666666667,362.3372727272727,355.4573333333333
2021-05-20,375.74666666666667,366.1550909090909,358.6702380952382
2021-05-21,377.04533333333336,368.96381818181817,361.1077142857143
2021-05-24,376.3186666666667,371.0478181818181,363.093
2021-05-25,383.35266666666666,376.90490909090903,367.12066666666664
2021-05-26,384.108,379.4547272727273,369.5817142857143
2021-05-27,385.794,382.0392727272727,372.12371428571436
2021-05-28,382.98333333333335,381.5696363636364,373.18242857142855
2021-05-31,385.83799999999997,383.81363636363636,375.5891904761905
2021-06-01,391.97266666666667,388.17781818181817,379.0073333333333
2021-06-02,394.204,390.03690909090915,381.1899047619047
2021-06-03,391.9626666666667,389.61454545454546,382.2396666666666
2021-06-04,388.43000000000006,388.3181818181818,382.8329047619048
2021-06-07,386.27933333333334,387.87381818181814,383.8004285714286
2021-06-08,387.5953333333334,388.8603636363636,385.4499523809524
2021-06-09,395.94466666666665,393.3196363636364,388.6570952380953
2021-06-10,402.13000000000005,396.70436363636367,391.2880952380952
2021-06-11,410.28866666666664,401.6814545454545,394.6419523809524
2021-06-15,414.73266666666666,405.2887272727273,397.403
2021-06-16,406.93333333333334,402.9414545454545,397.0802857142857
2021-06-17,401.302,401.86999999999995,397.1613333333333
2021-06-18,395.6433333333333,400.10636363636365,396.79928571428565

Answer: 37.6471