The Hubble tension survey: A statistical analysis of the 2012-2022 measurements

In order to investigate the potential Hubble tension, we compile a catalogue of 216 measurements of the Hubble-Lema<^>itre constant H-0 between 2012 and 2022, which includes 109 model-independent measurements and 107 Lambda CDM model-based measurements. Statistical analyses of these measurements show that the deviations of the results with respect to the average H-0 are far larger than expected from their error bars if they follow a Gaussian distribution. We find that xsdeviation is indeed equivalent in a Gaussian distribution to x eq sdeviation in the frequency of values, where x(eq) = 0.72x(0.88). Hence, a tension of 5 sigma, estimated between the Cepheid-calibrated type Ia supernovae and cosmic microwave background (CMB) data, is indeed a 3 sigma tension in equivalent terms of a Gaussian distribution of frequencies. However, this recalibration should be independent of the data whose tension we want to test. If we adopt the previous analysis of data of 1976-2019, the equivalent tension is reduced to 2.25 sigma. Covariance terms due to correlations of measurements do not significantly change the results. None the less, the separation of the data into two blocks with H-0 < 71 and H-0 >= 71 km s(-1) Mpc(-1) finds compatibility with a Gaussian distribution for each of them without removing any outlier. These statistical results indicate that the underestimation of error bars for H-0 remain prevalent over the past decade, dominated by systematic errors in the methodologies of CMB and local distance ladder analyses.