Question: 2022年10月20日到2023年04月29日，中国交建的信息比率是多少？（需年化（用复合年化收益率），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: IR = (AnnRet - AnnRet_b) / TE；TE = \sigma(r - r_b) * \sqrt{242}；r_b 为基准日收益率
Data:
date,close,benchmark_close
2022-10-19,7.09,3776.53
2022-10-20,7.07,3754.93
2022-10-21,7.36,3742.89
2022-10-24,7.05,3633.37
2022-10-25,7.08,3627.45
2022-10-26,7.07,3656.9
2022-10-27,7.09,3631.14
2022-10-28,6.88,3541.33
2022-10-31,6.69,3508.7
2022-11-01,6.95,3634.17
2022-11-02,6.96,3677.81
2022-11-03,6.9,3647.9
2022-11-04,7.01,3767.17
2022-11-07,7.11,3775.3
2022-11-08,7.12,3749.33
2022-11-09,7.05,3714.27
2022-11-10,7.07,3685.69
2022-11-11,7.24,3788.44
2022-11-14,7.23,3794.02
2022-11-15,7.27,3865.97
2022-11-16,7.18,3834.39
2022-11-17,7.22,3818.66
2022-11-18,7.11,3801.57
2022-11-21,7.09,3769.13
2022-11-22,7.8,3769.57
2022-11-23,8.58,3773.53
2022-11-24,8.28,3756.81
2022-11-25,8.78,3775.78
2022-11-28,8.76,3733.24
2022-11-29,9.12,3848.42
2022-11-30,9.06,3853.04
2022-12-01,8.85,3894.77
2022-12-02,8.97,3870.95
2022-12-05,9.87,3946.88
2022-12-06,9.45,3968.2
2022-12-07,9.38,3958.44
2022-12-08,9.26,3959.18
2022-12-09,9.05,3998.24
2022-12-12,8.88,3953.44
2022-12-13,9.0,3945.68
2022-12-14,8.97,3954.89
2022-12-15,8.9,3951.99
2022-12-16,9.05,3954.23
2022-12-19,8.31,3893.22
2022-12-20,8.26,3829.02
2022-12-21,8.27,3830.54
2022-12-22,8.13,3836.03
2022-12-23,8.19,3828.22
2022-12-26,8.19,3843.49
2022-12-27,8.24,3887.85
2022-12-28,8.11,3871.26
2022-12-29,7.98,3856.7
2022-12-30,8.05,3871.63
2023-01-03,8.28,3887.9
2023-01-04,8.24,3892.95
2023-01-05,8.3,3968.58
2023-01-06,8.16,3980.89
2023-01-09,8.13,4013.12
2023-01-10,8.07,4017.47
2023-01-11,8.05,4010.03
2023-01-12,7.96,4017.87
2023-01-13,8.01,4074.38
2023-01-16,8.28,4137.96
2023-01-17,8.28,4137.24
2023-01-18,8.28,4130.31
2023-01-19,8.31,4156.01
2023-01-20,8.68,4181.53
2023-01-30,8.49,4201.35
2023-01-31,8.55,4156.86
2023-02-01,8.86,4195.93
2023-02-02,8.98,4181.15
2023-02-03,8.81,4141.63
2023-02-06,8.77,4086.88
2023-02-07,9.11,4094.23
2023-02-08,8.83,4076.14
2023-02-09,8.9,4130.86
2023-02-10,9.04,4106.31
2023-02-13,9.25,4143.57
2023-02-14,9.15,4145.29
2023-02-15,9.07,4123.69
2023-02-16,8.87,4093.49
2023-02-17,8.79,4034.51
2023-02-20,9.28,4133.49
2023-02-21,9.3,4144.35
2023-02-22,9.38,4106.95
2023-02-23,9.24,4103.65
2023-02-24,9.13,4061.05
2023-02-27,9.03,4043.84
2023-02-28,9.23,4069.46
2023-03-01,9.58,4126.94
2023-03-02,10.15,4117.74
2023-03-03,10.78,4130.55
2023-03-06,10.68,4109.01
2023-03-07,10.59,4048.85
2023-03-08,10.71,4034.11
2023-03-09,10.58,4019.85
2023-03-10,10.57,3967.14
2023-03-13,11.06,4008.69
2023-03-14,11.03,3984.7
2023-03-15,11.59,3986.9
2023-03-16,11.38,3939.15
2023-03-17,11.86,3958.82
2023-03-20,11.58,3939.08
2023-03-21,11.35,3982.38
2023-03-22,11.29,3999.44
2023-03-23,11.8,4039.09
2023-03-24,11.11,4027.05
2023-03-27,11.06,4012.48
2023-03-28,11.3,3999.51
2023-03-29,10.6,4006.14
2023-03-30,10.56,4038.53
2023-03-31,10.56,4050.93
2023-04-03,10.66,4090.57
2023-04-04,11.65,4103.11
2023-04-06,11.59,4096.64
2023-04-07,11.25,4123.28
2023-04-10,11.63,4104.81
2023-04-11,11.8,4100.15
2023-04-12,11.98,4097.29
2023-04-13,11.82,4068.98
2023-04-14,12.05,4092.0
2023-04-17,12.49,4149.38
2023-04-18,12.45,4162.03
2023-04-19,11.99,4124.56
2023-04-20,12.62,4113.02
2023-04-21,12.16,4032.57
2023-04-24,12.0,3982.64
2023-04-25,12.06,3962.67
2023-04-26,11.41,3959.23
2023-04-27,11.75,3988.42
2023-04-28,12.35,4029.09

Indicator data:
Answer: 3.898