How's it going? That playlist looks great. I hope you are doing OK with it.
As far as your clips go, it's kind of hard to understand what's gone wrong. Are these long video clips, or just quick ones? Do you think that some of the clips may have gotten shot without pausing? It doesn't make sense that you'd have fewer clips than show up on your phone. Perhaps some were corrupt or not detected by Premiere Pro. Tough to say! Let us know more info if you can. I hope we can help.
Looking at your screenshots, it looks like you had your six clips imported and then it kind of looks like you imported those six clips again. Premiere Pro will allow you to import clips multiple times (there's a preference to stop them appearing in the Project panel).
I can see all the clip names are duplicated and there are matching pairs with the same clip duration. Is it possible you've imported a second time?