Question: 对于2020年11月29日-2021年07月28日的跟踪误差，招商轮船的值是？（需年化，A股按一年242个交易日）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: TE = \sigma(r - r_b) * \sqrt{242}；r_b 为基准日收益率
Data:
date,close,benchmark_close
2020-11-27,5.98,4980.77
2020-11-30,6.04,4960.25
2020-12-01,6.04,5067.1
2020-12-02,6.06,5067.14
2020-12-03,5.98,5057.06
2020-12-04,5.98,5065.92
2020-12-07,5.81,5022.24
2020-12-08,5.79,5009.88
2020-12-09,5.74,4942.7
2020-12-10,5.73,4940.52
2020-12-11,5.7,4889.63
2020-12-14,5.73,4934.84
2020-12-15,5.68,4945.1
2020-12-16,5.57,4953.87
2020-12-17,5.75,5017.48
2020-12-18,5.66,4999.97
2020-12-21,5.7,5046.84
2020-12-22,5.48,4964.77
2020-12-23,5.47,5007.12
2020-12-24,5.53,5000.02
2020-12-25,5.62,5042.01
2020-12-28,5.57,5064.41
2020-12-29,5.65,5042.94
2020-12-30,5.6,5113.71
2020-12-31,5.65,5211.29
2021-01-04,5.7,5267.72
2021-01-05,5.85,5368.5
2021-01-06,5.7,5417.67
2021-01-07,5.74,5513.66
2021-01-08,5.9,5495.43
2021-01-11,5.65,5441.16
2021-01-12,5.79,5596.35
2021-01-13,6.0,5577.97
2021-01-14,5.84,5470.46
2021-01-15,5.83,5458.08
2021-01-18,5.91,5518.52
2021-01-19,5.77,5437.52
2021-01-20,5.73,5476.43
2021-01-21,5.66,5564.97
2021-01-22,5.67,5569.78
2021-01-25,5.52,5625.92
2021-01-26,5.48,5512.97
2021-01-27,5.48,5528.0
2021-01-28,5.37,5377.14
2021-01-29,4.85,5351.96
2021-02-01,4.73,5417.65
2021-02-02,4.78,5501.09
2021-02-03,4.66,5485.2
2021-02-04,4.5,5473.95
2021-02-05,4.44,5483.41
2021-02-08,4.51,5564.56
2021-02-09,4.68,5686.25
2021-02-10,4.66,5807.72
2021-02-18,5.02,5768.38
2021-02-19,5.09,5778.84
2021-02-22,5.41,5597.33
2021-02-23,5.26,5579.67
2021-02-24,5.3,5437.57
2021-02-25,5.38,5469.56
2021-02-26,5.23,5336.76
2021-03-01,5.29,5418.78
2021-03-02,5.2,5349.63
2021-03-03,5.23,5452.21
2021-03-04,5.2,5280.71
2021-03-05,5.2,5262.8
2021-03-08,5.17,5080.02
2021-03-09,5.23,4971.0
2021-03-10,5.06,5003.61
2021-03-11,5.23,5128.22
2021-03-12,5.35,5146.38
2021-03-15,5.41,5035.54
2021-03-16,5.36,5079.36
2021-03-17,5.57,5100.86
2021-03-18,5.56,5141.77
2021-03-19,5.55,5007.09
2021-03-22,5.51,5057.15
2021-03-23,5.37,5009.25
2021-03-24,5.16,4928.69
2021-03-25,5.16,4926.35
2021-03-26,5.19,5037.99
2021-03-29,5.24,5046.88
2021-03-30,5.13,5094.73
2021-03-31,5.22,5048.36
2021-04-01,5.18,5110.78
2021-04-02,5.15,5161.56
2021-04-06,5.14,5140.34
2021-04-07,5.56,5103.74
2021-04-08,5.07,5112.21
2021-04-09,4.97,5035.34
2021-04-12,5.0,4947.75
2021-04-13,5.02,4939.64
2021-04-14,4.99,4980.63
2021-04-15,4.89,4948.97
2021-04-16,4.94,4966.18
2021-04-19,4.97,5087.02
2021-04-20,4.94,5083.37
2021-04-21,4.92,5098.74
2021-04-22,4.98,5089.24
2021-04-23,4.93,5135.45
2021-04-26,4.87,5077.24
2021-04-27,4.83,5090.52
2021-04-28,4.82,5119.24
2021-04-29,4.9,5164.17
2021-04-30,4.91,5123.49
2021-05-06,5.1,5061.12
2021-05-07,5.32,4996.05
2021-05-10,5.37,4992.42
2021-05-11,5.43,5023.06
2021-05-12,5.43,5044.55
2021-05-13,5.42,4992.97
2021-05-14,5.32,5110.59
2021-05-17,5.34,5184.99
2021-05-18,5.35,5187.6
2021-05-19,5.3,5172.27
2021-05-20,5.34,5186.41
2021-05-21,5.45,5134.15
2021-05-24,5.53,5155.59
2021-05-25,5.52,5318.48
2021-05-26,5.38,5320.59
2021-05-27,5.42,5338.23
2021-05-28,5.35,5321.09
2021-05-31,5.31,5331.57
2021-06-01,5.33,5341.68
2021-06-02,5.34,5289.97
2021-06-03,5.27,5255.29
2021-06-04,5.23,5282.28
2021-06-07,5.12,5277.63
2021-06-08,5.15,5232.12
2021-06-09,5.18,5236.45
2021-06-10,5.27,5271.47
2021-06-11,5.23,5224.7
2021-06-15,5.2,5166.56
2021-06-16,5.18,5080.49
2021-06-17,5.59,5101.89
2021-06-18,5.57,5102.47
2021-06-21,5.51,5090.39
2021-06-22,5.64,5122.16
2021-06-23,5.75,5147.39
2021-06-24,4.63,5155.97
2021-06-25,4.63,5239.97
2021-06-28,4.72,5251.76
2021-06-29,4.61,5190.54
2021-06-30,4.62,5224.04
2021-07-01,4.42,5229.66
2021-07-02,4.59,5081.12
2021-07-05,4.62,5085.79
2021-07-06,4.7,5083.1
2021-07-07,4.6,5140.49
2021-07-08,4.45,5088.26
2021-07-09,4.34,5069.44
2021-07-12,4.22,5132.71
2021-07-13,4.21,5142.1
2021-07-14,4.17,5083.08
2021-07-15,4.14,5151.46
2021-07-16,4.12,5094.77
2021-07-19,4.1,5113.49
2021-07-20,4.1,5108.99
2021-07-21,4.08,5144.04
2021-07-22,4.13,5151.75
2021-07-23,4.04,5089.23
2021-07-26,3.91,4925.3
2021-07-27,3.86,4751.31
2021-07-28,3.83,4760.48

Indicator data:
Answer: 0.4612