Nthawi zambiri, tikamalankhula index ya utomoni mandala, zimachokera 1.49 – 1.56 – 1.61 – 1.67 – 1.71 – 1.74. Kotero mphamvu yomweyo, 1.74 ndi thinnest, apamwamba mphamvu, zotsatira zoonekeratu.