New Zonal Clippings for C21 and C22

Continuing with Missing Zonal Clippings and following New Zonal Clippings for C23, C24, and C25, I added TWIC clippings to C21: 2002-2004 and C22: 2004-2005. I found nothing new on TWIC relevant to C20 and I expect to find the same when I tackle C18 & C19, the two cycles missing the most detail in my page on The World Chess Championship Zonals.