Similarly, worldwide average wheat yields have increased from less than 1 t/ha in 1900 to more than 2.5 t/ha in 1990.
sˈɪmɪlɚli, wˈɜːldwaɪd ˈævɹɪdʒ wˈiːt jˈiːldz hæv ɪŋkɹˈiːst fɹʌm lˈɛs ðɐn wˈʌn tˈiː slˈæʃ hˈɑː ɪn nˈaɪntiːnhˈʌndɹɪd tə mˈoːɹ ðɐn tˈuː.fˈaɪv tˈiː slˈæʃ hˈɑː ɪn nˈaɪntiːnhˈʌndɹɪd nˈaɪnti.