We study the behavior of solar wind (SW) parameters over 21-24 solar cycles (SCs). We take into account that these variation can depend on three reasons: (1) type of SW, (2) phase of SC, and (3) SC number. Our catalog of large-scale SW types for 1976-2018 (see the website ftp://ftp.iki.rssi.ru/pub/omni/ [Yermolaev et al., 2009]) covers the period from the 21st to the 24th SC and allows us to analyze independently these three reasons, since we can select SW parameters for different types of SW (in particularly, slow and fast SW, Sheath, ICME, CIR) and at different phases of different SCs. Preliminary data show that with an increase in the SC number (1) the number of perturbed SW types decreases and (2) the values of plasma and magnetic field parameters decrease in each type of SW, and for each phases of SCs. The most rapid change in parameters was observed during the minimum period between the 22nd and 23rd cycles. The work was supported by the Russian Science Foundation, grant 16-12-10062. References Yermolaev, Y.I., Nikolaeva, N.S., Lodkina, I.G., Yermolaev, M. Y. (2009). Catalog of large-scale solar wind phenomena during 1976–2000. Cosmic Res 47, 81–94 https://doi.org/10.1134/S0010952509020014Yermolaev, Y.I., Nikolaeva, N.S., Lodkina, I.G., Yermolaev, M. Y. (2015). Dynamics of large-scale solar wind streams obtained by the double superposed epoch analysis, JGR, https://doi.org/10.1002/2015JA021274