I just pulled 154 conversion packs and wanted to share my data in case it can help anyone. Feel free to share yours. It took me around 30 minutes.
Total packs: 154
5000 coins: 2 (1.3%)
3000 coins: 7 (4.5%)
2000 coins: 16 (10.4%)
1000 coins: 51 (33.1%)
500 coins: 78 (50.6%)
Total: 153,000
Average: 994