Statistical analysis of 26 yr of observations of decametric radio emissions from Jupiter M. S. Marques, P. Zarka, E. Echer, V. B. Ryabov, M. V. Alves, L. Denis and A. Coffre A&A, 604 (2017) A17 Published online: 27 July 2017 DOI: 10.1051/0004-6361/201630025