I'd also agree that Salah's performance has not dropped. And the data bears this out. Looking at his year-by-year stats playing for Liverpool, his figures for the current season (as stated above by skarais, 23 goals and 13 assists) are excellent, and in no way worse than previous seasons.
[img width=600]https://i.imgur.com/5nqhWDc.jpg[/img]
For anyone who says Salah's performance has decreased, they are completely unaware that Salah has managed to set a fantastic record this season. Salah manages to score 20+ goals every season
[based on stats on the pictures you posted] across various competitions for Liverpool but if one only sees him in one game especially when he doesn't score then he probably doesn't know much about Salah.
But for next season, I hope he will not be too affected by the possibility of Mane moving to another team. Salah remains Liverpool's most important player next season and I hope he can maintain his good record again.
Salah and mane combination has really helped Liverpool for some time now, looking at Liverpool past performance without mane and salah you Will found out that this duo are playing a vital role in Liverpool team. Since the combination of mane and salah, Liverpool have win some major trophies as a team, and are one of the toughest team in premier league and Europe. I never think they could be ever be separated, cause if ask I don't think I can let go of any of them. Mane going to Bayern is also a nice move, his memory and impact can never be replaced in Liverpool.