Wikipedia says the following 13 Upanishads are the Mukhya Upanishads:
- Isha Upanishad
- Kena Upanishad
- Kaṭha Upanishad
- Praṣna Upanishad
- Muṇḍaka Upanishad
- Māṇḍūkya Upanishad
- Taittirīya Upanishad
- Aitareya Upanishad
- Chāndogya Upanishad
- Bṛhadāraṇyaka Upanishad
- Shvetashvatara Upanishad
- Kaushitaki Upanishad
- Maitri Upanishad
My question is, how many verses are there in all the Mukhya Upanishads in total?