Swiss government bonds, bond funds

yes, I used MSCI world as a proxy. Depending on what you hold as Equity portfolio, the breakdown of capital gains & dividends would change.

For example, lets say you have 3000 in MSCI EM, 3500 in MSCI World & 3500 in MSCI CH & 10,000 in Bonds, Following would be optimal distribution for Scenario with 5% equities total gain, 1% bonds total gain (1.5% coupon) for 20 yrs , 35% Marginal tax & 20% lumpsum tax