GDP - Arab States - 2020. in Billion USD.
For comparision BD's GDP is about 300. You can compare relative size of economy from this chart.
Saudi Arabia: 680
Turkey: 649
Iran: 610
Israel: 383
Egypt: 361
UAE: 353
Iraq: 178
Qatar: 147
Algeria: 147
Morocco: 112
Kuwait: 108
Oman: 62
Jordan: 42
Tunisia: 39
Bahrain: 34
Sudan: 32
Libya: 21
Yemen: 20
Lebanon: 18